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Modeller - Institute of Transportation Studies

1. 6 1 Introduction Traffic assignment in Paramics applies to all vehicle types except fixed route vehicles The travel cost for each vehicle to reach its destination is calculated at defined time steps default is one calculation per vehicle every half second The costs of alternative routes are compared and the best route is taken as the route with lowest or least cost The View gt gt Routes and Edit gt gt Marking functions as described in Exercise 21 are useful methods of checking the routing options In addition View gt gt Context Layers gt gt Hot Spots may be used to highlight areas where congestion or major delay is occurring in the network Once the problems are identified then the traffic assignment model may require adjustment to more accurately reflect actual traffic movements In Modeller route choice flexibility can be achieved by changing e network coding e g link cost factors sign posted routes lane and turn restrictions e model parameters e g generalised cost coefficients of familiar drivers default car park origins destinations e assignment methods e g Stochastic dynamic feedback all or nothing 6 2 Network Coding For convenience some network coding issues are described in later sections For example route sign posting is detailed in section Sign Posting on page 83 and the effect of network restrictions in the Network Restrictions section on page 79 The following describes the use of link and
2. Preset View x Camera View v Layer Groups x Edit Mode Node Add Action FS Add node Function Action FS Renumber all e ew ic 55i5s9 a8meco2sgl smxsrele x melt yz 2003 05 21 00 00 00 1 4 gt 0 00 xRT Ov aon co 2D Figure 2 Screen Layout 3 1 1 Layout of Modeller Window The Title Bar of the Main window displays the name of the current simulation network and is positioned on the top of the Paramics Main window The Menu Bar is positioned immediately below the Title Bar and comprises of the Paramics dropdown menus File Edit View Tools Simulation and Help Quadstone Paramics V4 2 9 Quadstone Paramics V4 2 Modeller User Guide Each menu choice is described in detail in the Modeller Reference Manual The Icons Toolbars if selected are displayed immediately below the Menu Bar and comprises of the shortcut icons The Paramics Simulation window comprises of the network viewer This is the major part of the Paramics Modeller software and is used to pan and zoom throughout the simulation network and is also the key to the editing via the Graphical User Interfaces GUIs Below the Simulation window the Network Editor Toolbar will be displayed if the Editor Toolbar is initialised The Reporter window is located immediately below the Simulation window and is used to display messages and warnings to the user The Reporter window can be docked undocked or hidden according to the users prefe
3. Initial 150 OK Cancel Next in the Editor Toolbar select the Edit Zones icon Highlight Zone 2 within the Paramics Modeller Simulation window by clicking the middle mouse button inside the zone boundary The Modification Toolbar icons should now read Add New Zone Annotate Zone Delete Zone Zone Options and Clear All Select Zone Options A pop up window appears which allows the user to specify the type of parking associated with the selected zone For details on each option see page 104 of the Modeller Reference Manual Select the option Specify carparks This enables the Edit carpark list function Click on this function with the left mouse button so the function now reads Finish editing In the Modeller Simulation window select the car park by clicking in the middle of the car park area with the middle mouse button A further pop up window appears with the question Add carpark to zone list Select Yes Return to the Zone Options window and click the left mouse button on Finish Editing The car park has now been associated with Zone 2 Repeat this process to associate Zone 5 with the car park then Close the Zone Options window and Save and Refresh the changes Start the simulation and note the arrival and departure of vehicles through the car park To show the position of the car park select View gt gt Model Layers gt gt Carparks Show a selection of routes to from the parking areas The Status Report window will occasi
4. the time that the loop is occupied incomplete complete smoothed e Gap the time that the loop is unoccupied between vehicles incomplete complete smoothed e Headway the time between leading edges of successive vehicles complete smoothed e Flow the instantaneous flow calculated from inverting the headway instantaneous smoothed e Speed for double loops the speed calculated from the time difference between two rising edges instantaneous smoothed e Count the cumulated total number of vehicles counted in each lane e Edges the raw times at which the vehicles presence or absence is detected The option Tools gt gt Dynamic Graphs gt gt Link Statistics may also be used to display a range of real time graphs both for links and detectors Instantaneous values can be displayed for the currently selected detector while mean values can be displayed for the currently selected link Use the Right Mouse Button to select either a Detector or a Link to display a graph where the user has chosen appropriate X and Y axes Vehicle type and sample rate can be varied using the pull down menu Further information on gathering and viewing output data can be found in the Gathering Output Data Technical Note Quadstone Paramics V4 2 119 Quadstone Paramics V4 2 Modeller User Guide 12 Index A Add Node 17 Adding a Link 16 All or nothing 64 Annotation 41 C Categories 18 26 56 74 Category Cos
5. Balance This in the phase adjacent to the selected phase Balance Next or across all phases Balance All By default the amber yellow time is set to 3 seconds and is automatically displayed within the Signal Display This can be toggled on off using the Amber check box in the Signal Times section The 3 seconds is subtracted from the red time if the red phase is 3 seconds or more Paramics assumes that the amber yellow time is added to the actual green time to give an effective green time The user can choose to show the Effective or Actual green time using the combo box within the Signal Times window Note The 3 seconds default amber yellow time can also be modified to represent local conditions within Edit Configuration Options Exercise 10 Change the cycle time by selecting Cycle Variable instead of Cycle Fix in the Cycle Time section Note the cycle time changes by increasing or decreasing the Red or Green times Code the traffic signal plan shown in Figure 5 Select the Signal Display tab click on the first phase and then click the Selected Priority tab Left click on the northern approach arm and select Approach Barred from the Multiples combo box Continue by making the left turn from the west MEDIUM and all other turns MAJOR Using the Turn Movements tab check that all turning movements have been allocated to the appropriate lanes refer to Figure 5 In the Signal Times tab set the phase selected to pha
6. major Category 21 1 lane 12 1 ft 30 mph urban major ri 7 Category 22 2 lane 24 0 ft Category 21 1 lane 12 1 ft p 30 mph urban major Category 22 2 lane 24 0 ft 30 mph urban major 2 Category 21 1 lane 13 1 ft 2 30 mph urban major Category 22 2 lane 24 0 ft 30 mph urban major 30 mph urban major P Category 21 1 lane 12 1 ft 30 mph urban major Circulating Carriageway category 22 2 lanes 24 ft urban major one way arc left Figure 6 Junction Intersection C Roundabout Quadstone Paramics V4 2 29 Quadstone Paramics V4 2 Modeller User Guide Cateaorv 22 2 lane mph urban Cateaorv 22 2 lane 24 0 30 mph urban Cateaorv 22 2 lane 24 0 30 mph urban ral lt Cateaorv 21 1 lane 12 1 mph urban ra Hi Category 21 1 lane 12 1 30 mph urban Cateaorv 22 2 lane mph urban Categorv 22 2 lane 24 0 30 mph urban Phase Diagram Phase 1 Phase 2 Aba 4 4 Actual Green Time 25s Actual Green Time 15s Red Time 5s Red Time 5s Figure 7 Junction Intersection D Traffic Signals 30 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Category 22 2 30 mph urban Cateaorv 22 2 lane 24 0
7. or links Modeller has the ability to restrict vehicles by turn This is specified in the same manner as link based restrictions with the exception that the Node Editor gt gt Selected Priority gt gt Restriction combo box is used to specify the restriction to be applied to the specific turn movement Note Modeller automatically checks the routing implications due to restrictions and includes additional routing tables specifically for restricted traffic The section headed Restrictions on Page 107 shows an example of the effect of restrictions in the increasing the number of routing tables 8 3 Infrastructure 8 3 1 Loop Detectors Modeller is designed to mirror real world data collection from induction loops but can also gather statistics not currently collected by on road detectors To collect data the user needs to add a detector to a specific link within a simulation network Exercise 31 Specify loop detectors on the northbound and southbound links of High Street and Mayfair In the Editor Toolbar select a link then the Edit Loop Detectors icon then Add Detector The detector attributes window appears allowing a user to type an ID name and input the loop length i e the distance between the upstream and downstream edges of the loop Type a loop length of 8 ft and press OK and Save and Refresh A detector has now been specified at a point on the link The position of the detector can then be moved in the same way as moving a no
8. 1 Loop Detectors regere rx xxn her e Ex d Rr 82 8 3 2 Sign Posting oe Wi Awe de redes me D Re law d RR ae awe e c 83 8 3 3 hisce T 84 9 Traffic Demand 1I eet LI 88 9 1 Zone Specification ver ve e ar x EXC YR xo xe Y via 88 FPE unspm ET 90 9 3 Time Periods and Time Dependent Inputs eeseeeeeeenen nnn 95 9 3 1 Time Dependent Demand Files esseeseeeenen nnne 95 9 3 1 1 Time Dependent Profile File cesses 95 9 3 2 Time Dependent PT Files ssssssssssserrerresnesrrennessorreennesnorrernnennen 99 9 3 3 Time Dependent Vehicles Files esee 99 9 3 4 Time Dependent Network Files eeeeeeeen mmm 99 9374 1 Traffic Signals rore en rida aerial yi re rec EE a corre 99 9 3 5 Periodic Link Changes eec ree tierra c Eae CR a ER 100 2 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 9 4 Multiple Profiles cccccccecce sees e eee eee eee nennen menn nennen nennen nnn 101 10 Traffic Assignment IIz cierre eme exa er E eae 105 10 1 Random Release of VehicleSiininii cinni a AA 105 10 1 1 Modifying the Release of Traffic sssssssssssrrssrrrrrrrrnsrrrnrrrrseriners 106 10 2 Features Affecting Traffic Routing ssssssssssssresrnresrrrrurrrnsrnnnurnreernn 107 10 2 1 RESEFICUONS essione URS 107 10 2 2 Forced Lane ChangESss coniare aen ANE c ij Rd Rn kae d a 108 10 3 Averaging Feedback Costs sssssssssssessssese emen 110
9. 10 3 4 5 end number 3 8 7 10 3 4 6 end number 4 11 10 3 2d 2a 2b 2c 2d 3 10 11 end Select Edit gt gt Measurements gt gt Routes and check the following PT Routes r1 r2 r3 r4 and r5 are selected Finally select Edit gt gt Measurements gt gt Trips and add the following Trips from zone 1 to zones 2 3 4 5 6 7 Trips from zone 2 to zones 1 3 4 5 6 7 Trips from zone 3 to zones 1 2 4 5 6 7 Trips from zone 4 to zones 1 2 3 5 6 7 1 2 3 4 6 7 1 2 3 4 5 7 1 2 3 4 5 6 mT mT Trips from zone 5 to zones Trips from zone 6 to zones Trips from zone 7 to zones p mar ESE Start the simulation and run for 30 minutes of simulation time and then quit Modeller The output files will be saved to a sub directory Training modresult1 Log run 001 or equivalent Modeller will identify where the files are saved For example the checking the Link Delay box creates a file called trips linkdelay HH MM SS with the following specification dj cemere IDE rv ee mE Trip Link Time Count qi Re aR aS es SS Sea Sr SS ast T 2 gt 3 Feld 5 00 2 gt 3 17 4 20 00 2 gt 3 4 3 11 00 2 gt 3 3 2d 8 00 2 gt 3 2d 2a 3 00 2 gt 3 2a 2b 1 00 3 gt 2 2b 2c 4 00 3 gt 2 2c 2d 2 00 3 2 2d 3 9 00 3 gt 2 3 10 10 00 3 gt 2 T0 8 00 2 gt 4 JT 3 00 2 54 17 4 24 00 4 2 4 17 8 00 Quadstone Paramics V4 2 69 Quadstone Paramics V4 2 Modeller User Guide For each vehicle released onto the network the links del
10. 2 Modeller User Guide Quadstone Paramics V4 2 9 3 2 Time Dependent PT Files Fixed demands such as PT links can also be coded to change at different time periods As with the demands file the busroutes file should be coded so that busroutes 1 refers to the PT Services during period 1 busroutes 2 for period 2 and so on All PT Routes must be defined in all files so if a route does not operate during a specific period the frequency for that route should be set to zero To test changes in PT Routes by time period code busroutes files for each time period with different frequencies and start times Start the simulation and observe the bus loading Check using the Editor Toolbar Editor Options gt gt Periodic command that the PT Lines periodic toggle is set on 9 3 3 Time Dependent Vehicles Files Like demands and busroutes the specification for vehicles can be defined by time period This enables the user to change the matrix proportions familiarity and perturbation The file names should be consistent with other time dependent files i e vehicles 1 vehicles 2 etc Note All vehicle types should be defined in all files 9 3 4 Time Dependent Network Files 9 3 4 1 Traffic Signals One of the most frequent changes that occur in urban networks throughout a day are changes in traffic signal timings In Modeller the fixed time signal plans are stored in the priorities file as actions It is possible to specify different signal p
11. 2c 2 1 13 9 56 6 4 07 45 00 2i 2c 2d 2 7 16 6 42 2 2 07 45 00 2d 3 1 1 160 9 313 2 7 07 45 00 File signal queues 07 45 00 Ait a oe rg iU ee Pe ee IE uu Link Lane Q Start ft End ft Size Time Blocked pioen ennan e ee ee Se gt ius 9 0 0 37 8 2 07 40 00 Ve 0 0 535 4 07 40 00 x 17 7 2 0 0 20 7 2 07 40 00 7 10 2 0 0 92 7 5 07 40 00 11 10 1 0 6 78 4 4 07 40 00 11 10 2 1 8 2552 2 07 40 00 3 4 0 0 271 2 10 07 40 30 x giu 1 0 0 23 0 2 07 40 30 10 7 0 0 65 5 4 07 40 30 3 10 0 0 129 2 6 07 40 35 5 4 0 0 101 0 4 07 40 50 70 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Two sets of files are produced for queue counts namely link queues HH MM SS and signal queues HH MM SS for non signal and signal junctions intersections respectively Each contains data on queue lengths locations and indicates if the traffic is blocking back from downstream links File release 07 45 00 07 45 00 Matrix 1 1 2 3 4 5 6 7 Total Block Tries T 0 15 10 3 0 7 0 35 4 0 30 2 15 0 2 1 0 0 3 2i 0 21 3 8 5 0 5 6 17 0 41 0 41 4 3 13 0 0 0 6 1 23 0 23 5 3 6 7 3 0 3 1 Z3 0 23 6 6 2 9 16 2 0 1 36 0 36 7 3 1 0 2 1 1 0 8 0 8 38 42 28 30 9 34 6 187 0 187 07 45 00 Matrix 2 1 2 3 4 5 6 Total Block Tries 1 1 YA BWNHE OOOrFRFOWO FOOrRNO W ONDO OONO OH N OHG O a E a a a E a e NBN DAID oco Q 0 O0 CO
12. 30 mph urban _ Cateaorv 21 1 lane 12 1 Category 22 2 lane 24 0 mph urban 30 mph urban c E Category 21 1 lane 12 1 m 20 mph urban major wide P2 P1 Category 22 2 lane 24 0 Category 21 1 lane 12 1 30 mph urban 30 mph urban Phase Diagram Phase 1 Phase 2 Phase 3 Actual Green Time 20s Actual Green Time 5s Actual Green Time 25s Red Time Os Red Time 5s Red Time 5s Figure 8 Junction Intersection E Traffic Signals Quadstone Paramics V4 2 31 Quadstone Paramics V4 2 Modeller User Guide Edit the links using the Modify Link icon located on the Editor Toolbar Select a link by clicking in the Simulation window with the middle mouse button For the selected link check the coding specified in Figure 4 to Figure 8 and use the Modify Link function to re code For example in Figure 5 Junction Intersection B the link from the west is defined as category 21 1 lane 12 1 ft 20mph urban major wide start By changing the category to 21 in the Link Attributes window the speed is automatically changed to 30 mph This can be reset by dragging the speed slider to 20 mph To check the link is urban and to code a wide start select the Flags menu and toggle the required buttons on Note The units displayed for speed and width will be the preferred units coded within the Configuration Manager Paramics
13. 45 16 83 2 from 2 195 0 31 18 18 0 20 from 3 45 70 0 36 70 133 5 from 4 45 85 9 0 14 77 18 from 5 45 40 98 40 0 47 5 from 6 45 8 55 88 42 0 8 7 0 from iT 15 10 25 X0 16 58 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 matrix 2 from 1 0 40 25 from 2 14 O0 18 from 3 2 20 0 from 4 3 10 1 from 5 3 5 1 from 6 3 1 10 from 7 3 2 0 matrix 3 from 1 0 10 5 from 2 6 0 2i from 3 3 10 0 from 4 2 5 0 from 5 2 5 af from 6 2 1 5 from 7 2 3 0 10 10 10 NNODOAON OnDOR UAIN ONONDAOEH 12 deh 13 nd DOWOAOCO OOONrFOO ONORFOF The text box mentioned above may be used to enter the filename for any file the user wishes to edit Repeat the above procedure to produce a demands 2 file that matches the following specification demands 2 file demand period 2 matrix count 3 divisor 1 0000 matrix 1 from 1 0 150 120 from 2 295 0 53 from 3 45 70 0 fron 4 45 85 9 fron 5 50 40 97 from 6 45 8 55 from 7 17 15 TO matrix 2 from 1 0 40 25 fron 2 15 0 30 from 3 2 20 0 from 4 3 10 1 from 5 3 5 1 from 6 3 1 10 from 7 3 2 0 matrix 3 from 1 O0 10 5 from 2 5 0 10 from 3 3 10 0 from 4 2 5 0 from 5 2 5 T from 6 2 1 5 from 7 2 3 0 48 30 36 39 88 25 ODOR UONN ONONODERE 88 133 77 46 16 12 11 13 C2 nd omar 0 01 UW DOONEFNO ON OR ROR Quadstone Paramics V4 2 59 Quadstone Paramics V4 2
14. ESS 0 TS 2 9 0 13 6 10 10 15 63 0 63 3 2 3 0 2 5 7 1 20 0 20 4 0 3 3 0 1 2 4 13 0 T3 5 5 5 2 4 0 2 3 21 0 2T 6 2 0 2 1 2 0 2 gal 0 9 7 5 3 2 5 6 4 0 25 0 25 23 18 23 20 25 30 27 166 0 166 08 30 00 Matrix 1 1 2 3 4 5 6 7 Total Block Tries 1 0 5 2 6 6 5 8 32 0 32 2 0 0 0 0 0 0 0 O 0 0 3 3 5 0 9 5 5 8 35 0 35 4 3 6 6 0 8 7 4 34 0 34 5 6 3 8 4 0 8 7 36 0 36 6 4 5 5 5 3 0 7 29 0 29 7 11 2 4 4 9 2 0 32 0 32 27 26 25 28 31 27 34 198 0 198 Note All the traffic is released from Zone 2 during the 5 minute period from 8 20 to 8 25 Also for this particular run the total number of vehicles released for time period 1 was 427 as opposed to the demands file total of 420 104 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 10 Traffic Assignment II 10 1 Random Release of Vehicles The difference of 7 vehicles in the above multiple profile example is due to random release of traffic within the program As there is no true random generator of numbers the program can produce exactly the same results if the same network and demand are used together with the same starting point for generating random numbers This starting point is known as the seed value The seed value can be specified in the Configuration Manager or can be left blank in which case Modeller will use the cpu internal clock time as the seed value Modeller version 4
15. Editor as described below Note The coding of articulated vehicles e g LRT trams etc is described in the Advanced User section of this manual Quadstone Paramics V4 2 53 Quadstone Paramics V4 2 Modeller User Guide 5 5 1 PT Routes To code PT Routes and PT Stops open the Editor Toolbar and select the Edit PT lines function so the Bus Route Editor appears Public Transport Lines Service amp Route schedule Associated Stops Route ID Service Name Fleet Size i Vehicle Type x Route Colour iml Use In Main Display m Route Sections Edit Route Cancel V Auto Fill Links OK Apply Cancel In the PT Lines Editor there are three modes are shown Service amp Route Schedule and Associated Stops In the Simulation window click with the middle mouse button on the link which is to be the first link of the bus route The option New Route will appear By selecting New Route the chosen link will be shown in purple with a cyan circle at the downstream node position Again using the middle mouse button select the next link on the bus route Continue adding links until the full bus route is defined Note If a link is added so that it is not on the bus route then it can deleted with the Delete Last button Also if the links are not consecutive a warning appears in the Reporter window The user must include data relating to the number capacity and type of vehicle for each route i e Rou
16. Loop Detector Data section on page 118 while the following shows how to collect statistics for the entire simulation network To collect network wide data the user specifies a period over which the data is collected This data could be Snapshots Turn Counts Queue Counts and Release Counts To collect other data such as Bus Delay Link Delay Paths and Trip Info additional specifications are required within the routes menu trips menu and paths menu Exercise 25 Open the network Training modresult1 and select Edit gt gt Measurements gt gt General To collect Link delay PT delay Routing Paths and trip analysis toggle the appropriate check boxes Fl Measurements x General Periodic Loops Trips PT Routes Paths Signal Flow IV Trip Analysis incidents VV PT Delay v Routing Paths Feedback Costs IV Link Delay Economic Info Vehicle Types All Vehicles C Light Vehicles Heavy Vehicles Options Group Data Trace Vehicle Loop Time Seconds Page Length En Start Time 2 OK Apply Cancel 68 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 In addition to this the user must make further inclusions within the Trips PT Routes and Paths menus Select Edit gt gt Measurements gt gt Paths and check the menu contains the following information paths file path count 4 number 19 717 4 3 2d 2a 2b 1 end number 2 11
17. Note It is important to be aware that a convention exists where the direction of a link is always from first node to second node i e from purple to green Next click on Add Node Note If the purple and green nodes were at opposite ends of the same link then the link would be highlighted as grey and the new added node would appear halfway along the link If the purple and green nodes were on different links then the new node appears at the blue cross hair position The new node becomes the purple node A node that is not connected to the rest of the network will be highlighted as red A node highlighted as purple is moved by holding down the lt shift gt key and either clicking the middle mouse button to reposition the node at the blue cross hair or by holding both keys simultaneously to drag the node around the screen The same functionality is achieved using the Snap To symbol on the Navigator Panel After repositioning the node select the Save and Refresh icon from the save function group Quadstone Paramics V4 2 17 Quadstone Paramics V4 2 Modeller User Guide 3 2 3 Link Editing In the Editor Toolbar window select the Link icon as opposed to Node in the above section Select a link by moving the arrow to the required link and clicking the middle mouse button alternatively use Select Middle from the Navigator Panel The edit group keys should read Modify Link Delete Link Annotate Link and Clear All Note Click
18. O0 OO 07 45 00 Matrix 3 1 2 3 4 5 6 N d e B e G UJ e B K p n UAHA BWNE O O OGO HO COCOCOCCOCN OO OG O OGOH OOGO GNOG DOO OOGO O OOWH C H Il OOGO DORH OOG 12 0 The release counts show if all the traffic is loaded onto the network However if some traffic is prevented from loading onto the network because the link s associated with the zone become saturated then the second last column Block will display the number of vehicles prevented from entering the simulation Paramics attempts to release these trips when road space is available However if links are saturated during the full simulation time then some trips will not be released onto the network Quadstone Paramics V4 2 71 Quadstone Paramics V4 2 Modeller User Guide 7 1 1 Statistics It is also possible to extract summary statistics from Modeller that give network wide information about delay queuing number of vehicles on the network distance travelled and mean speed This information can be used to assess the overall effectiveness of the model Select Edit gt gt Measurements gt gt General and toggle Economic Info by clicking in the associated box This will produce a number of values to be written to the file named general in the current Log run directory The column headers are listed and described as follows HF current all vehicles time nv mean veh ave tra
19. Origin Carpark Feedback aum v Closest Destination Carpark smecthingFactor i Turning Penalties Visble To All pee Doy p 995 Category Cost Factors Visable Factor To All Generalised Cost Coefficients 3 Perturbation Time a 1 000 penta Percentage Distance b 0 000 T Matrix Tunin Tolis c p 000 uU None OK Apply Cancel For a small network like the tutorial network there may be no significant re routing effects However on larger network the route changes are likely to be more marked Note An additional more detailed exercise on Generalised Cost Coefficients can be found on page 112 Quadstone Paramics V4 2 63 Quadstone Paramics V4 2 Modeller User Guide 6 4 Assignment Methods The assignment model predicts the routes drivers will choose between an origin and a destination The three main assignment techniques used in Paramics are all or nothing assignment stochastic assignment and dynamic feedback assignment All or nothing assignment assumes that all drivers travelling between two zones choose the same route and that link costs do not depend on flow levels Stochastic assignment methods try to account for variability in travel costs or drivers perception of those costs These methods assume that the perceived cost of travel on each network link varies randomly within predefined limits Dynamic feedback assignment assumes that drivers who are familiar with
20. Periods and Time Dependent Inputs The choice of model time periods is not only governed by the fluctuation in traffic demand through time but also by network changes such as different traffic signal settings by time of day Modeller has the flexibility to specify a wide variety of demand changes and network changes through the simulated period The program reads sets of files for each specified time period for demand demands files vehicles file and busroutes file and for network links file and priorities file The breakdown of the time periods is specified within the profile file Care should be taken to ensure all time dependent files are correctly specified by the user 9 3 1 Time Dependent Demand Files 9 3 1 1 Time Dependent Profile File The profile file is used to define how the total simulation is divided into time periods Firstly the periods are defined For example 24 hour simulation may be divided in 4 periods as follows Demand profile Period count 4 period 1 start 07 30 00 period 2 start 10 00 00 period 3 start 16 15 00 period 4 start 18 45 00 For the above periods no vehicle release profile is defined and therefore a flat or uniform profile is assumed for all time periods To define a profile for each time period input the percentage of traffic released during each 5 minute time block Modeller assumes that unspecified values are zero In the example below values would be inserted where xxx is show
21. Qo Preset View vj Camera View vj Layer Groups vj Wo Overlap data found in current network Wo Overlap data found in current network 2002 09 10 07 00 00 1 4 oooxRT 0Ov cO 2D Figure 1 Completed Network 8 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 3 Introduction to Paramics Modeller 3 1 Modeller Start up Modeller is available for a wide range of systems including Windows NT 95 98 2000 XP Sun Microsystems Solaris Linux and Silicon Graphics IRIX To install the software please refer to the instructions given in the Paramics Software Installation Guide and ensure the toggle to load Modeller is selected To run the full version of Modeller a valid licence file is required After installing the software a Modeller icon will appear on the monitor screen To start a Modeller simulation double click on this icon using the eft mouse button A display window appears similar to Figure 2 below If the software is loaded on a Unix workstation simply type the command modeller amp in a shell window and press return The display window will be similar on PC and on Unix but with slight variations depending on the window manager in use Paramics Modeller 4 1 0 with Programmer 4 1 0 New Network C Program Files Paramics 4 data building shapes File Edit View Tools Simulation Help GI Ch m H EP ch a Fp nearest Noderzone 5 mt eim S ades IA LO 9 H ze E E 62
22. Quadstone Paramics V4 2 45 Quadstone Paramics V4 2 Modeller User Guide 5 2 Demand Specification The matrix of trips to and from zones is defined in the demands file There are two methods of changing the demands one by editing the demands file directly or two by using the Demand Editor To edit the demands file directly open the Editor Toolbar then use File Editor icon in the Network Options Toolbar to open the Paramics Editor In the Paramics File Editor select Demand gt gt demands then type the new values for the matrix cells to match the following Save file reload the changes and start the simulation demand period 1 matrix count 1 divisor 1 Matrix 1 From 1 0 200 150 50 20 100 4 from 2 350 0 100 40 50 5 42 from 3 50 100 0 504 Hor LI50 7 from 4 50 100 10 0 20 100 21 from 5 50 50 100 50 0 50 5 from 6 50 10 70 100 50 0 10 from 7 20 20 10 30 10 20 0 The demand period associates the demands file to a specific time of day which is defined in the profile file The matrix count defines the number of matrices and is associated to the specification of vehicle types in the Vehicles Manager The divisor is the value that all matrix elements are divided by while the elements or cells in the demand table set the number of trips between each origin and destination After saving the demands file and reloading the software automatically sums the row and column totals and prints these as comments i e with to indic
23. Qut 47 3 5490 23843 116 15 6 23 84 1 53 BUS 0 mE 0 0 0 0 0 0 0 0 00 0 00 0 0 0 0 ALL 51 9l 47 3 5490 23843 116 15 6 23 84 1 53 08 04 00 50 10 7 233 2 8250 34225 155 14 9 34 23 2 29 BUS 0 0 0 0 0 0 07 10 0 00 0 0 00 0 0 0 0 ALL 50 10 7 5352 8250 34225 155 14 9 34 23 2x29 08 05 00 47 14 8 59 0 11029 45316 187 14 8 45 32 3 06 BUS 0 0 0 0 0 0 0 0 0 00 0 00 0 0 0 0 ALL 47 14 8 59 0 11029 45316 187 14 8 45 32 3 06 08 06 00 40 9 7 61 5 13705 55906 223 14 7 55 91 3 81 BUS 0 SS 0 0 0 0 0 0 0 0 00 0 00 0 0 0 0 ALL 40 9 61 5 13705 55906 223 14 7 55 91 3 81 The travel time vehicle hours can be calculated from the all vehicles section by multiplying the travel time and total nv columns The travel distance vehicle feet meters can be calculated from the all vehicles section by converting to the relevant units Note Explanations and descriptions of all files generated from the measurements menu specification are contained in the Modeller Reference Manual Appendix B Descriptions of Generated files Quadstone Paramics V4 2 73 Quadstone Paramics V4 2 Modeller User Guide 8 Network Build II 8 1 Urban Highway Network In Paramics links in a network can be described as urban or highway The main distinction is that highway links are not restricted by junction intersection priorities In addition by default trips are prohibited from loading onto highway links The option of highway or urba
24. Restrictions 1 Table 6 types 14 Unfamiliar Restrictions 1 The type restrictions have been split so that tables 3 and 4 relate to vehicles with both restriction 1 and restriction 2 i e vehicle type 13 Tables 5 and 6 relate to only type 14 restrictions Note The greater the number of restrictions the greater the number of routing tables This can have a significant effect on the processing speed of the simulation as more routing calculations are required 10 2 2 Forced Lane Changes Modeller calculates the best lane for a vehicle to be in by looking several nodes ahead to see the turn definitions at the upstream nodes This default lane mapping can be overridden by specifying next lanes Start the simulation and observe the movement of vehicles travelling north from Zone 6 onto High Street If the simulation is too fast increase the Time Steps per second by either pressing the keyboard minus sign several times or by using Edit gt gt Configuration gt gt Base Parameters drag the Time Steps per second slider bar to the right The Time Steps per second are changed here only for demonstration purposes It is not advisable to change this value for full model runs as Paramics has been validated for time steps set between 2 and 5 calculations per second Normally if you wish to slow the visualisation you are recommended to use the Inter time step pause function refer to Modeller Reference Manual Note Altering the
25. Time Steps per second will affect simulation statistics as the random number generator will not follow the same progression as more time steps are specified per second nullifying the use of a seed value Vehicles going north from link 9 7 are in lane 1 As they progress to the High Street link they either go directly to lane 2 on the High Street if they are turning left at the next upstream junction intersection node 4 or stay in lane 1 to turn right or straight ahead To override this lane mapping open the Toolbar Editor select node 7 and Modify Junction 108 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Select the Selected Priority tab on the left hand side of this window and the Lane Allocation tab on the right hand side the lane allocation and priority are specified for each turn The Nextlanes section is used to define the lane mapping for each specific turn Exercise 39 Change the default lane mapping for the movement from link 9 7 to link 7 17 so traffic leaves lane 1 on link 9 7 and goes directly to lane 2 on link 7 17 First from the Editor Toolbar select node 7 and Modify Junction Then in the Edit Junction window Selected Priority select the turn from node 9 to node 7 to node 17 Remember that this turn will be highlighted in yellow once the user has clicked the left hand mouse button on the approach link then keeping the button pressed move the mouse arrow towards the appropriate exit link
26. Trips are released from and arrive at geographical areas called zones Alternatively car parks can be defined as the start and end points for trips Fixed demands such as PT Routes can also be coded Although these are usually assumed to start at a time specified by the route timetable the vehicle interaction in the model will reflect the fixed route times as these vehicles interact with road traffic 5 1 Zone Specification As described above zones are defined as geographical areas where trips start from and finish at The definition and size of traffic zones is critical in determining the realism and accuracy of the traffic model The following exercise is used to show zone coding and the specification of link release proportions There are two different types of Zones within Paramics Zone Areas and Zone Links Zone Areas apply when Network is selected in the Scope Menu while Zone Links apply during Junction Analysis when Junction is selected in the Scope Menu 5 1 1 Zone Areas A Zone Area is a set of points defining the boundary of a region used for categorising origins and destinations within the model representing the demand side of the network simulation Each Zone has a unique ID or number and is used in association with the demands to represent the demand for travel in the simulation The number of points and the position of each of the points can be modified by the user using the functionality available within the Zone Edi
27. Type 13 OGV1 Type 14 OGV2 Physical Attributes Demand amp Assignment traters Proportion reo m Fixed Route Vehicles Perturbation 5 00 Familiarty 8500 mU l Capacity Entry Doors Routing DD v Matrix E x The Vehicle Type Manager should then be modified to include the following vehicle type specification Type Base Type Proportion Perturbation Familiarity Routing Matrix 1 Car 78 0 5 0 85 0 OD 11 Mini Bus Fixed 12 LGV 10 0 5 0 85 0 OD 13 OGV1 6 0 5 0 85 0 OD 14 OGV2 3 0 5 0 85 0 OD 15 Coach 3 0 5 0 85 0 OD 16 Bus Fixed Quadstone Paramics V4 2 51 Quadstone Paramics V4 2 Modeller User Guide 5 4 Profile Specification In addition to specifying the demands and vehicles files a profile file can be specified to change the demand at 5 minute time intervals The profile file also defines the number of time periods and if required can define more than one profile refer to multiple profiles in the Traffic Assignment II section To change the profile the user should open the Editor Toolbar and then select File Editor to open the Paramics Editor window By choosing Demand gt gt profile a file showing the format of the profile file plus an example appears as comments denoted by See below PROFILE profile count NUMBER lt profile lt NUMBER gt DE period count lt NUMBER gt divisor lt NUMBER gt interval lt NU
28. XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX The periods defined can be viewed using View gt gt Show Periods The period number the period start time and the period end time will be displayed in the Reporter window Example To define four periods 8 15 to 8 30 8 30 to 9 20 14 05 to 16 10 and 16 20 to 16 30 with individual profiles the following profile should be specified Note Lines beginning with are comments only and are ignored by the program 96 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Demand Profile Period Count 4 Divisor 10 Interval 5 8 15 to 8 30 8 30 to 9 20 14 05 to 16 10 and 16 20 to 16 30 period 1 start 08 15 00 200 300 500 period 2 start 08 30 00 80 80 80 120 120 110 110 110 100 90 period 3 start 14 05 00 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 period 4 start 16 20 00 600 400 To demonstrate the effect of time dependent files use the urban network defined in Training demtime2 Edit the profile file to match the above and code four demand files to correspond to the above period definition The demand files should be named as demands 1 demands 2 demands 3 and demands 4 As a test the demand files may all to coded to have the same cell values as the following demand period 1 matri
29. and release For the highlighted movement the Turn allocation will show Turning Lanes 1 1 Below the Lane allocation the 1 gt shows that only lane 1 is allowed for this turn and by clicking on the up and down arrows to the right of i gt the default lane mapping changes To check the coded changes to lane mapping ensure that View gt gt Model Layers gt gt Next Lanes is toggled on Click on the arrows until 2 2 is shown beside lane 1 i e 1 gt If View Model Layers Next Lanes is on then a white line will be drawn in the Simulation window from lane 1 on link 9 7 to lane 2 on link 7 17 This represents the change in lane mapping from program default to the value defined by the user Save and Refresh and start the simulation All traffic travelling north from Zone 6 is forced into lane 2 of the northbound link of High Street However vehicles turning right or going straight ahead at node 4 weave immediately to lane 1 after entering the High Street link The use of next lanes is a flexible alternative to the default lane mapping For example coding next lanes can be used to create the effect of spiral road marks on roundabouts and for controlling the weaving of traffic between lanes Note The default lane mapping for vehicle transferring from the current link to the downstream link is lane 1 to lane 1 lane 2 to lane 2 etc See page 48 of the Reference Manual It is possible for the user to specify a ran
30. any details of the contents of this document in any way through any medium to any third party not listed in the distribution list provide above for the document and its contents Modeller User Guide Quadstone Paramics V4 2 1 Before You Begi iedreen rere ede cota Teen E pH wens b Y Ee LR pa EV Pa ETATE pe 4 1 1 Introduction to Paralisi t aee ai i tAE REEERE nnn 4 1 2 Basic Concepts and Terms sessssrsesssnrsrnssssrnrnnnsuenerrnnnnesserrannaeneernerran 4 1 3 Modeller Development Cycle ssssssesssrrsrrssssrrrsrnesnsrrennnessrrrennasnerrrennns 5 1 4 How this Manual is Organised ssssssrssssrrssnrnsennnsrrrnnrrrnnrnrnurrnnnrrnnnrnnns 5 1 4 1 Totoral o seco neues docete eese be ulcer vire tae wie eit pened e vule eu 6 1557 KRe feFeTi E on ciii oper eile pide te pee Dr HR T SEI gee nee tuned OEIEVEN E VERE ETE ones 6 1 6 Conventions used in this Manual sesseseeennmmeen menn nnn 7 2 TULOM al ETA c CIE 8 2 1 Introduction to the Tutorial sier err ieret istet eee r Aret nennen eme eene 8 3 Introduction to Paramics Modeller cccccceceee cece eee eset eee nnnm nnns 9 3 1 Modeller Start Upro e e neva a a wi err b c ec dele cs 9 3 1 1 Layout of Modeller Window ssssseeeenn mmm 9 3 1 2 Dropdown Menus eseeseenennennen nnnm mea sean nea sea nennen nnn 11 3 1 3 Reporter WindOW sesseseeseesenene nennen seas sea sea sean nn nnn 12 3 1 4 NAVIQAUON kyeme aaa ANE ver erwin the Eai 12 3 1
31. around the perimeter of the zone New vertices are shown as a small green dotted square If a vertex is deleted the unconnected vertices of the zone are automatically joined after Save and Refresh Exercise 4 Add new zones and position these so that the zone boundary covers a link Save and Refresh changes Quadstone Paramics V4 2 19 Quadstone Paramics V4 2 Modeller User Guide Exercise 5 Start the simulation two alternative methods the Start Simulation icon in the main Toolbar or spacebar change the Viewport window zoom down to the detail of a junction select the View dropdown menu Model Layers and tear off toggle Stoplines on off Toolbars gt Dynamic Measurements b Model Layers Show All Context Layers Clear All Save Layer Selections pred Tune Reset Layer Selections Fa Carparks Preset views gt Closures Text gt Lane Choices Links Auditing gt Detectors Detectors gt Midlines PT Lines SUP c sb Demands CtrieD nM Routes E Ctri U d wes Show Periods bin Vehicle Dynamics hese S ears A Speed Controls Signals Signposting Turn Arrows Vehicles VMS Beacons Zone Boundaries Zone Connectors Zone Sectors Note If the simulation is running the Start function key changes to Pause To stop the simulation select the Pause function or press spacebar The Reporter which is docked at the bottom of the Simulation window or opened by selecting Tools Reporter can be used to i
32. as a template to build a network model These can be read into Modeller as Bitmap bmp AutoCAD dxf of TGA tga For the purposes of this tutorial an AutoCAD file called overlay dxf has been prepared Exercise 7 Copy the file overlay dxf from the media provided either CD or Floppy Disk into the training tutorial directory i e Training urban Open the Training urban network by clicking the Modeller icon and selecting File gt gt Open this is the network which was created in the section Layout of Modeller Window on page 9 Load the overlay file by selecting Edit gt gt Overlays or the Overlay Manager icon Quadstone Paramics V4 2 23 Quadstone Paramics V4 2 Modeller User Guide This will launch the Overlay Manager window that will allow you to manage your overlay s within a network Click the Add button to select an overly file to load for display The file selector will be shown with the default BMP file filter change this to dxf To select a file you navigate to the correct directory icon the left panel and select the overlay file on the right panel The restrictions on overlay size and dimensions for raster images introduced in V3 remain in V4 Overlay Manager Overlay 1 type DXF new overlay ID 2254 Overlay 2 type BMP new overlay ID 4141 ee _ Date Overlay 1 Xt 000153 7 Yt 000547 5 Zt 00000 000 Xs 0001 0 Ys 0001 0 Xrot 000 0 Yrot 000 0 Zrot 000 0 Options visei
33. be used to curve the selected link Using the convention that the link direction is defined as purple node to green then Arc Right will draw a circle with a centre point to the right in the direction of the link With Arc Left the centre will be to the left Select a link that you wish to code as curved and Arc Right or Arc Left as appropriate After selecting Apply or Apply and OK a dotted circle is drawn in the Simulation window representing the arc associated with the selected link Modeller calculates a default position for the centre of the circle and a default radius Save and Refresh to update the alignment of the link To change either the centre position or the radius in the Editor Toolbar select Edit Curves The correctly selected curve is highlighted in green with three broken lines joining the centre to three points on the circumference Two of the points on the circumference match the position of the end nodes of the link while the third is drawn halfway between these node points on the circumference of the curve In the Simulation window click on the centre point of a curve The centre point is marked with a yellow square and one point on the circumference will be drawn as a blue square After selecting the centre the HUD will show either Edit Mode Variable Radius or Edit Mode Fixed Radius To toggle between these options click the change curve mode icon The best way to match the curvature of the overlay with the network curve
34. been saved each bus route then needs a starting point and an end point The Associated Stops mode within the PT Lines Editor icon allows the user to do this Firstly select a bus route from the Associated Stops window using the eft mouse button Toggle Associate select the stop where the route begins and toggle Route Start Repeat this process for Route End Apply and OK and Save and Refresh View PT Lines is used to select a bus route and identify the associated PT Stops The selected route will be highlighted and any PT Stop attached to the route will be drawn with a blue box round them A network with five PT Routes has been coded and is contained in the directory Training demfix1 Open this network using File gt gt Open and view the routes using View PT Lines 5 6 Run Initialisation The network and demand are now in place Start the simulation using either the Start simulation function key or the spacebar as described on page 19 Note The simulation starts at 00 00 00 hrs refer to simulation clock and no vehicles appear on the network except for the fix bus demand The Configuration Manager sets up a list of initialisation parameters used to control a simulation run Edit the Configuration Manager within the Edit dropdown menu select Configuration Base Parameters Change the start time to match the following Then Apply and OK Start Time Duration Seed 08 00 00 01 00 00 1 0 The simulation clock should n
35. converts all units to metric for internal calculation and then applies conversion factors again to convert to US Imperial measurements The conversion of units can be subject to minimal rounding errors and will not influence the simulation to any extent Check the coded widths for all links on the network and correct where necessary from the Editor Toolbar select Link and Modify Link as before Again in the Editor Toolbar select File Editor to activate the Paramics File Editor window See the Modeller Reference Manual page 108 Open the links file selecting Network links At the top of the Paramics Editor window the full path name for the selected file is displayed e g C Program Files Paramics data Training urban links For some links the codes widths are different from the default category widths and these are stored as individual values in the links file 4 4 Urban Network Junction Intersection Coding The aim for this section of the tutorial is to code examples of priority junctions intersections roundabouts and signalised junctions intersections Figure 4 to Figure 8 should be used as reference for lane markings turning arrows and traffic signal plans 4 4 1 Priority Junction Intersection Open the Editor Toolbar and select the node shown as Junction Intersection A in Figure 3 Refer to the junction intersection details shown in Figure 4 Select Modify Junction to open the Edit Junction window The Edit Junction window has f
36. in each 2 minute period The dynamic feedback assignment updates the link costs to include a turning delay cost The turn delays are calculated at defined feedback periods specified by the user in this case set as 2 minutes Therefore after each 2 minute period Paramics extracts the turning delays in the network and adds these to the link costs To damp the fluctuation in route costs Paramics adds the new turn delay cost to the previous turn delay cost and takes the average of these costs refer to The Averaging Feedback Costs Section on page 110 By default feedback calculations only affect familiar drivers as these drivers are assumed to know the road network and any potential alternative routes The Averaging Feedback Costs Section on page 110 describes how to change the default feedback so both familiar and unfamiliar drivers are affected Note Although damping of feedback costs is carried out there is no guarantee that large fluctuation in costs will not occur Therefore it is recommended that checks be carried out to validate the route assignments 6 4 4 Combining Assignment Techniques It is possible to run dynamic feedback together with stochastic assignment or with all or nothing assignments This allows the user even more flexibility for route choice However as with all assignment techniques extensive checks on routing should be used to validate the alternative routes A description of a method to average the feedback costs
37. is contained in the Averaging Feedback Costs Section Quadstone Paramics V4 2 67 Quadstone Paramics V4 2 Modeller User Guide 7 Collecting amp Analysing Model Results I 7 1 Gathering Statistics Calibration is an essential stage of the traffic modelling process This procedure requires comparing model results to observed data and ensuring that these comparisons fall within acceptable guidelines As part of model calibration the visualisation of traffic moving through the road network may be compared to junction intersection video information or to local knowledge of traffic operation In addition Modeller can collect and output statistics such as turning counts journey times queue lengths etc for comparison to data observed on site These outputs can be reported to text files and can be displayed using the Paramics Analyser A full description of how to use the Analyser module is contained in the Analyser User Guide and Analyser Reference Manual Paramics output statistics extraction is dictated by two menu options configuration and measurements As mentioned previously the Configuration Manager sets up a list of parameters used to control a simulation run while the Measurements Manager defines a list of statistics to be collected The output data can be collected for the whole of the model network and also at individual sites where loop detectors are located Data collected from loop detectors is described in the Gathering
38. junction intersection positions The resulting network should then be similar to the skeleton road network shown in Figure 3 Figure 3 Skeleton Urban Network Church Greet Quadstone Paramics V4 2 25 Quadstone Paramics V4 2 Modeller User Guide Once the skeleton network has been completed change the categories to match those specified in the junction intersection sketches shown in Figure 4 to Figure 8 At this stage do not try to match the speeds and widths To match categories use the drop down menu bar Edit gt gt Categories Ml Categories Manager x New Copy 1 Delete Category 1 lanes 1 speed 30 mph width 4 0 m type urban maj Category 2 lanes 2 speed 30 mph width 8 0 m type urban maj Category 3 lanes 3 speed 30 mph width 12 0 m type urban m Category 4 lanes 4 speed 30 mph width 16 0 m type urban m Physical operational Speed mph 5o Signpost m 250 0 Lanes Signpost io Range m Width 40 m E Type Urban Major Median m do Co and change the categories based on the following information Category Lanes Speed mph Width m Type 30 0 3 7 urban minor 30 0 7 3 urban minor 30 0 11 0 urban minor 30 0 14 0 urban minor 40 0 3 7 urban minor 40 0 7 3 urban minor 40 0 11 0 urban minor 40 0 14 0 urban minor 30 0 3 7 urban major 30 0 7 3 urban major 30 0 11 0 urban major 30 0 urban major 40 0 3 7 urban major 40 0 7 3 urban major 40 0
39. not associated to any part of the network but only to a position in the Simulation window In the Polygon Line mode the user can define the co ordinates of the start and end points of the lines Note The Add Modify and Delete options are activated and by default the blue cross hair position is shown in the x y z co ordinate boxes By clicking Add the co ordinate of the present position of the b ue cross hair is added to the polygon description box 42 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 In the Simulation window change the position of the b ue cross hair by clicking the left mouse button when the mouse arrow is in the required location The x y z co ordinates in the Annotation window will automatically change The user can add change and delete these co ordinate positions as required until the polygon or line is completed Selecting the Circle mode changes the Size box to read Radius A circle is drawn with its centre at the x y z co ordinate position and radius as defined in the Radius box Quadstone Paramics V4 2 43 Quadstone Paramics V4 2 Modeller User Guide 5 Traffic Demand I Travel demand in Paramics is defined by a matrix of origin to destination trips specified in the demands ASCII Network file The trips are proportioned into vehicle types defined in Vehicles Manager and can be profiled by 5 minute time periods for a maximum of 24 hours defined in the profile file
40. or in the Navigator Panel click on the symbol Select Right Remember that the node selected using the Navigator Control Panel will be the one closest to the b ue cross hair position shown in the Simulation window Exercise 3 Use both the Node and Link functions to include crossroads and T junctions in the network Save and Refresh changes To add a new junction on an existing link the user is required to firstly select the link and then using the node icon in the editor menu select the Add Node icon As described previously the new node is added at the mid point of the selected link 3 2 4 Zone Editing Select the function Edit Zones icon from the Demands Toolbar and immediately a green dotted rectangle appears in the Modeller Simulation window The rectangle defines the area of a new zone if one is added to the network By clicking with the middle mouse button in the middle of an existing zone all vertices of the bounding area of the zone are highlighted If all the vertices of the zone are marked then the entire zone can be dragged and moved around the screen using the lt shift gt key together with the middle mouse button The same functionality can be achieved using the Select Middle and Snap To symbols from the Navigator Panel To move an individual vertex use the middle mouse button to click inside the zone close to the required vertex and move it using the lt shift gt key and middle mouse button Vertices can be added
41. streams of traffic including major movements A MEDIUM priority gives way yields to MAJOR streams of traffic but has priority over MINOR traffic movements MINOR priority gives way to both MAJOR and MEDIUM traffic flows while BARRED indicates the turn is banned to all vehicle movements Note Minor priority vehicles will slow down before proceeding even if no conflicting movements exist To select a different turning movement click with the left mouse on the approach arm of the turn required within the diagram Hold down the left mouse key and move within the diagram area The turn arrow switches towards the junction intersection arm closest to the mouse Quadstone Paramics V4 2 33 Quadstone Paramics V4 2 Modeller User Guide Exercise 9 Edit the junction intersection priorities so that turns from the southern arm are MINOR i e give way to all traffic the left turn from east to south is MEDIUM i e gives way to oncoming traffic and all other turns are MAJOR Save and Refresh all changes For reference the following figure shows the recommended priority coding for a four arm priority junction intersection 34 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Priority Minor Arni Major Arm Major Arm Major Arm Major Arm Minor Ar Priority Minor Arni Major Arm Major Arm Figure 9 Priority Hierarchy Quadstone Paramics V4 2 35 Quadstone Paramics V4 2 Modeller Us
42. the road network changes refer to Figure 11 Connect the highway nodes by adding links with the appropriate categories All links along the highway should be coded as category 37 Do not code ramp or slip lanes at present as the coding of these features is explained later in this section 8 1 1 Links with Medians Categories 35 to 38 include median central reserve widths of 13 1 ft 4m For example category 37 coding will give a carriageway width of 36 ft 11 0m plus a median width of 13 1 ft 4m These distances are measured from the centre line of the link therefore if each side of a link is coded as category 37 then the total central reserve width will be 26 2 ft 8m By default links are drawn as straight lines between connecting nodes with kerb positions for the nearside and centre of the link Kerbs are drawn at the start and end of each link and are repositioned using the Editor Toolbar Edit Kerb points icon refer to the kerbs and stoplines section on section on page 40 Quadstone Paramics V4 2 75 Quadstone Paramics V4 2 Modeller User Guide 8 1 2 Curved Links In some road networks the alignment of the links are curved so that they fit geometric and topographical constraints In the Editor Toolbar select Link and click with the middle mouse button in the Simulation window to choose a link Using Modify Link open the Link Attribute window and select the Flags menu Two of the toggles Arc Right and Arc Left can
43. the simulation The aim of this exercise is to reiterate the importance of calibrating the correct weighting in the generalised cost equation to key OD pairs prior to assigning demand Exercise 47 Use the command File gt gt Open to activate network data selection browser and select Training CostEquation and select Open Ensure that the Highway Urban links display is toggled on by selecting View gt Links gt gt Highway Urban The network consists of a network with two alternative routes between two zones The first route red is a straight urban road with a speed limit of 30 mph the second blue curved highway with a speed limit of 70 mph Firstly use the Right Mouse Button to select Link 1 2 then also select Zone 2 in the same way Finally choose View gt gt Routes and toggle show route in the Routing Display Control menu The user will observe that the AON route based on the default cost equation coefficient uses the blue route because based on time this route has the cheapest cost Change the Generalised Cost Coefficient so that the equation favours distance i e Time 0 Distance 1 and Tolls O using the Configuration Manager 116 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Repeat the selection of the link zone combination using the Right Mouse Button and then View gt gt Routes The user will now observe that the AON route now uses the red route because based on distance this route h
44. the turn arrows shown in Figure 6 This requires the user to modify all the roundabout nodes Select node a roundabout node and choose the Modify Junction icon then select the Selected Priority window and Lane Allocation window within the Edit Node 38 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 To switch from normal junction intersection priority modification it is necessary to toggle Roundabout Data in the Lane Allocation window the display window will then change to show a graphical representation of the roundabout This allows the user to dictate roundabout turning movements for the approach link and circulating carriageway associated with this node Edit Junction 2c Selected Priority Signal Times amp Ped Turn Movements Lane Allocation Signal Display External r Selected Movement Turning Lanes 1 2 E v Rounabout Data Nextlanes Priority Minor v Phase a Multiples v m Restriction The Selected Priority window displays the relevant approach arm in green the user can select turning movements to the exit these wish to code by holding down the eft mouse button and releasing it at the exit The turning lanes can then be modified in the same manner as for other junction intersection types This must be repeated for the circulating carriageway then the process must be repeated for all roundabout nodes After all turning movements h
45. types except 13 Familiar Link 11 10 gt Zone 4 table 2 cost 00 00 38 length 1353 ft Table 2 all types except 13 Unfamiliar Link 11 10 gt Zone 4 table 3 cost 00 00 50 length 1353 ft Table 3 types 13 Familiar Restrictions 1 Link 11 10 gt Zone 4 table 4 cost 00 00 38 length 1353 ft Table 4 types 13 Unfamiliar Restrictions 1 Quadstone Paramics V4 2 111 Quadstone Paramics V4 2 Modeller User Guide The cost for familiar drivers has been changed from 38 to 50 but unfamiliar costs remain the same Toggle on turning penalties visible to all in the Configuration Manager If you repeat the above procedure and visualise the route costs at 7 05 00 both familiar and unfamiliar costs have been updated from 38 to 50 Even though the turning delays are damped there is no guarantee that large oscillations in turning costs will not occur As well as viewing the route costs Modeller outputs these costs to a file if gather feedback costs is toggled on in Edit gt gt Measurements gt gt General menu This will save a set of files feedback HH MM SS in the statistic run directory for intervals set by the feedback specification in the Configuration Manager For example if the Paramics network is in a directory called Paramics data network then by editing the measurements to include feedback cost and Configuration Manager to include the following Start Time Duration Seed Feedba
46. 0 from 2 195 0 31 18 18 0 20 0 from 3 45 70 0 36 70 133 5 0 from 4 45 85 9 0 14 77 18 0 from 5 45 40 98 40 0 47 5 0 from 6 45 8 55 88 42 0 8 0 from 7 17 Se 100 i25 10 116 0 0 from 8 3000 0 0 0 0 0 0 O matrix 2 from 1 0 40 25 0 2a 2 0 100 from 2 14 0 18 2 T 0 0 0 from 3 2 20 0 10 5 m 1 0 from 4 3 0 il 0 4 13 2 0 from 5 3 5 1 10 0 0 0 0 from 6 3 I SO 0 6 0 0 0 from 7 3 2 0 3 0 4 0 0 from 8 150 0 0 0 0 0 0 0 matrix 3 from 1 0 10 5 2 1 0 1 12 from 2 6 0 7 0 0 0 0 0 from 3 3 k0 0 10 0 6 1 0 from 4 2 5 0 0 2 GI 1 0 from 5 2 5 I 0 0 3 0 0 from 6 2 1 5 2 2 0 2 0 from 7 2 3 0 2 0 0 0 0 from 8 9 0 0 0 0 0 0 0 Paramics will automatically update the demand matrices by including zero trips for a new added zone 88 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Zone 008 Zone 004 Zone 007 mri Zone 003 Zone 006 Zone 001 Figure 14 Skeleton Highway Network with Zones Quadstone Paramics V4 2 89 Quadstone Paramics V4 2 Modeller User Guide 9 2 Parking Trips start from the origin zone and finish at the destination zone In some instances this description may be inadequate because the site where vehicles park may be some distance from where the trip end actually starts or finishes In Modeller parking areas can be coded and these can be associated to specific origin and or destination zones and to vehicle type purpos
47. 0 has a choice of two random number generators either Marsaglia or Merseene Twister Split Random Number Seeds amp Streams specify the seed splitting option designed to separate the use of random numbers in different areas of the simulation with the result that changes in one area of the simulation will not impact on other areas Users are recommended to run the model with different seed values to test the sensitivity of the model A table showing the fluctuation in release rates with different seed values can indicate the stability of model results for a particular run For example the following table shows typical release rates generated with different seed values Seed Value Vehicles Released 8 15 to 8 20 8 20 to 8 25 8 25 Total to 8 30 5 63 166 198 427 314 61 161 197 419 120462 66 152 210 428 100000000 57 165 191 413 The above table shows a variation of or 3 in total demand levels which is generally acceptable considering hourly and daily fluctuations in traffic flows The percentage differences in row and column totals and in individual cell values will be greater than this for two reasons Firstly the numbers will generally be smaller than the full matrix total unless the matrix is a single cell value and secondly the numbers are integers i e complete vehicles Therefore it is advisable for the user to assess these variations and decide if they lie within reasonable limits for each particular model Quadstone Pa
48. 00 40 50 5 42 from 3 Sf LEO 0 55 82 165 7 from 4 50 100 10 0 20 100 21 from 30 50 50 100 50 0 50 5 from 6 50 10 70 100 50 0 10 from 7 20 20 10 30 10 20 0 After saving and reloading the changed files the View gt gt Model Layers gt gt Zone Boundaries menu option can be used to display the new zone names The Status Report window will show warnings that Zone 2 and Zone 5 are ignored in the sectors file To complete the exercise edit the sectors file so that sector 2 includes the new zones names 57 and 30 Exercise 22 Produce separate demand matrices for cars Igvs and hgvs for 7 8 am and for 8 9 am Firstly revert to the original zone names i e remove the references to Zones 57 and 30 from the zones file and from the sectors file The above exercise requires two separate demand files one for 7 8 am the other 8 9 am each with three matrices matrix 1 for cars matrix 2 for Igv s and matrix 3 for hgv s From the Editor Toolbar open the File Editor window At the top of this window there is a narrow band text field Click with the left mouse button inside this field so that text box is selected and type the filename demands 1 in this box After pressing Enter the Status Report window indicates that a new file has been opened called demands 1 Edit this file to match the example shown below and Close then reload the network demands 1 file demand period 1 matrix count 3 divisor 1 0000 matrix 1 from 1 0143 113
49. 1 follow vehicle 1 or to destroy different tagged vehicles The Dashboard View window will display a representation of the vehicle dashboard with speedometer gear shift etc Exercise 43 Describe the information provided when the View gt gt Dynamic Measurement Flow View gt gt Dynamic Measurements gt gt Speed and View gt gt Dynamic Measurements gt gt Density functions are activated Exercise 44 What does the Tools gt gt Options gt gt Fast Navigation function do Detailed explanations for the functions mentioned in the previous two exercises are contained in the Modeller Reference Manual Exercise 45 Quadstone Paramics V4 2 113 Quadstone Paramics V4 2 Modeller User Guide Identify different coded link speeds Edit the Categories Manager so different colours are associated to different speeds using the following information Category Lanes Speed mph Width ft Type Colour 30 0 12 0 urban minor green 30 0 24 0 urban minor green 30 0 36 0 urban minor green 30 0 48 0 urban minor green 40 0 12 0 urban minor cyan 40 0 24 0 urban minor cyan 40 0 36 0 urban minor cyan 40 0 48 0 urban minor cyan 30 0 12 0 urban major white 30 0 24 0 urban major white 30 0 36 0 urban major white 30 0 48 0 urban major white 40 0 12 0 urban major yellow 40 0 24 0 urban major yellow 40 0 36 0 urban major yellow 40 0 48 0 urban major yellow 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 To view different link s
50. 10 4 Additional Exercises eessessesseeseeeeen nennen nenne nennen nnn nn 113 10 5 Strategic ROUTES osse xo eur ten x nun x Ora rene nt e ex pi RR Kien 115 10 6 Generalised Cost Coefficient eaa ora aaa eset eee e neta a E Aa CAAA 116 11 Collecting amp Analysing Model Results I cceceeeee eee ee teens eee eeeeeeeeeees 118 11 1 Gathering Loop Detector Data ssssesesene nnnm nnns 118 11 1 1 Generated Text Files ssesssssseseeeeeen enne nnn nnn 118 11 1 2 Interactive Detector Data HARE EE ERE VERRE MES 119 12 Indexer ena ter ie ae irte e x Ro LR OR ne E 120 Quadstone Paramics V4 2 3 Quadstone Paramics V4 2 Modeller User Guide 1 Before You Begin 1 1 Introduction to Paramics Paramics is a suite of high performance software tools used to model the movement and behaviour of individual vehicles on urban and highway road networks The Paramics Project Suite consists of Paramics Modeller Paramics Processor and Paramics Analyser Paramics Modeller provides a visualisation of road networks and traffic demands using a graphical user interface GUI Geographic and travel data is input to the program which then simulates the lane changing gap acceptance and car following behaviour for each vehicle The speed of the simulation is governed by the computer processing power the size of the network and the number of vehicles on the network at any one time Paramics Processor configures and ru
51. 11 0 urban major 40 0 urban major 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 26 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 After all the changes have been made click the OK button The changes will then be saved and reloaded within the network Complete the coding of the skeleton network by changing the link categories speeds and widths to match those specified in the junction intersection sketches shown in Figure 4 to Figure 8 Category 22 2 lane 24 0 ft 30 mph urban major Category 21 1 lane 12 1 ft 30 mph urban major Category 21 1 lane 13 1 ft 30 mph urban major Category 22 2 lane 24 0 ft 30 mph urban major Figure 4 Junction Intersection A Priority Junction Intersection Quadstone Paramics V4 2 27 Quadstone Paramics V4 2 Modeller User Guide Categorv 22 2 lane 24 0 30 mph urban Category 21 1 lane 13 1 mph urban Categorv 21 lane 12 1 ft 20 urban maior wide Category 22 2 lane 24 0 20 mph urban Phase Diagram Vx y v Vv 2 2 Z Actual Green Time 20s Actual Green Time 10s Actual Green Time 20s Red Time Os Red Time 5s Red Time 5s Figure 5 Junction Intersection B Traffic Signals 28 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Category 22 2 lane 24 0 ft 30 mph urban
52. 4 1 Three Button Mouse cceccecce ese eeee esse eeeeeeaeesaeesaeesaeesanesaneeanes 12 3 1 4 2 Mouse plus Navigator Panel ecceceeeee eect eect este eee teens eaeaees 13 3 1 4 3 Keypad HOtKeyS ccceececcceeee eect eeeeeeeeeeaeeeaeeseeeneeneeaneeeaneeggs 13 3 2 ParamicsS ENEON oiu derer eret er oot vtae ev rz Dv ae Ea REV pr 2 aD Ve ERR En Si a Y NU 16 3 2 1 Adding aLink ice rer ee i nece fern ie ode oceani dai 16 3 2 2 Node Editing cT 17 3 2 3 Link Editing eea ena aa Rex eR ER eR Pee iur rege CETERA PENE 18 3 2 4 Zo e Editing oro E KAEA me te NE A NN ined 19 3 3 Exiting Paramics Modeller and Archiving ssesseee 21 4 Network Build dote ree tis EnS eder nl Ee erede eA idee rete eru eet idee reds 22 LOMENSI cmm 22 4 2 Model Area Template cccccccsccsceeceeceeee esses esse eee ee eee neas nna sea sean nn nnn 23 4 3 Skeleton Network Coding rsss eere te tx vente aen k unie rb RE EN Tea 25 4 4 Urban Network Junction Intersection Coding eee 32 4 4 1 Priority Junction Intersection cccecc cece cece cece esse eeeeeaeeeeeeeeneeaneeaes 32 4 4 2 Traffic Signal Junction Intersection esee nnn 36 4 4 3 Roundabout Junction Intersection eeeeee mmm 38 4 4 4 Kerbs and Stop Lines seeseseeeseenenemememee nennen nennen nnns 40 4 5 Infrastr ctUrFe ss cisci eene rax v aav vea Fia v ad vaa Rd Ya T va ER d Ea Ea ELA 41 4 5 1 Anriotatlor zi rex ae redeo era EE
53. It is therefore important that kerbs are positioned to reflect as accurately as possible the actual road layout Kerb points can be edited using the Edit Toolbar select Edit Kerb points icon Each kerb is displayed as a small square with the following associated colours outside end white inside end grey outside start red and inside start dark red Specific kerbs are selected by clicking over the required kerb using the middle mouse button The entire link associated with that kerb point is highlighted in green This is to clearly identify the kerbs associated with each link Holding down the lt shift gt key and clicking with the middle mouse button repositions the selected kerb To show that the position has changed from the default position an x is marked inside the square In addition individual locus points can be repositioned and edited using the Edit Stop Line function in the Edit Toolbar Stop lines at the end of a link are shown as white squares while at the start of the link they are drawn as red squares The position of the stop line may be changed in the same way as described for kerbs above Also the angle of a stop line can be changed by selecting the stop line and using the Change Stopline mode icon to toggle between Editor Stopline Position and Editor Stopline Angle Holding down the lt shift gt key and clicking with the middle mouse button will adjust the angle Note Ensure White and Red stoplines are placed consecuti
54. MBER gt gt DE LI period NUMBER start T4 name start hour lt NUMBER gt DE NUMBER NUMBER NUMBER lt NUMBER gt gt gt DE Example s Demand Profile Profile Count 2 Profile 1 Period Count 4 Divisor 10 Interval 5 period 1 start 08 15 00 200 300 500 period 2 start 08 30 00 80 80 80 120 120 110 110 110 100 90 period 3 start 14 05 00 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 period 4 start 16 20 00 600 400 Profile 2 08 15 00 0 1000 0 08 30 00 80 80 80 120 120 110 110 110 100 90 14 05 00 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 16 20 00 600 400 52 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Exercise 18 Edit the profile so the demand matrix is for the hour 8am to 9am and 14 of the demand is loaded during the first 10 minutes 32 loaded for the next 20 minutes then 54 during the last 30 minutes The total percentage for each time period must equal 100 When completed the profile file will be similar to the following Demand Profile Period Count 1 Divisor 1 Interval 5 period 1 start 08 00 00 778888999999 The start time can be at any 5 minute time step for example if the above profile w
55. Modeller User Guide The next step is to edit the vehicle categories so that the different vehicle types use the correct matrix This can be undertaken using the GUI Edit gt gt Vehicles Type Base Type Proportion Perturbation Familiarity Routing Matrix 1 Car 100 0 5 0 85 0 OD 11 Mini Bus Fixed 12 LGV 100 0 5 0 85 0 OD 13 OGV1 48 0 5 0 85 0 14 OGV2 48 0 5 0 85 0 15 Coach 4 0 5 0 85 0 16 Bus Finally edit the profile file so that there are two periods the first from 7 8 and the second from 8 9 Edit the profile file save it then reload the simulation network profile file Demand Profile Period Count 2 Divisor 1 Interval 5 period 1 start 07 00 00 66666 610101010 10 14 period 2 start 08 00 00 778888999999 Paramics recognises that there are two demand periods and associated with each period there is a demands file i e demands 1 for time period 1 and demands 2 for time period 2 To check the user should open the Editor Toolbar and select the Editor Options icon The Demands function toggle should automatically be set to the on position Change the Configuration Manager to start at 7 am and increase the simulation time to two hours then start the simulation As the simulation runs past 08 00 hrs the Status Report window indicates that the simulation has switched to the second time period 60 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 6 Traffic Assignment I
56. Open the Editor Toolbar and click on Edit Nodes then using the left mouse button select the location of the first node and select Add Node Select the location of the second node and select Add Node Next select a node using the middle mouse button when selected the node will be highlighted purple Select the second node this time using the right mouse button the second node will be highlighted as green Finally select Add Link this will launch the Link Attributes window enabling the user to select the relevant link category Note Categories are explained in greater in Chapter 4 16 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 3 2 2 Node Editing Open the Editor Toolbar and click on the Edit Node In the Modeller Simulation window zoom down to a node and using the middle mouse button click on the node Note The modify Toolbar icons add node modify node delete node and modify junction become highlighted Using a two button mouse a selection is activated by clicking both buttons simultaneously Alternatively in the Navigator Panel click on the symbol Select Middle to select the node which is closest to the b ue cross hair position in the Simulation window Next select another node this time using the right mouse button similar for two button mouse or using Select Right from the Navigator Panel Also the first node is highlighted as purple while the second node is highlighted as green
57. Quadstone Paramics V4 2 Modeller User Guide Quadstone Limited Version No 3 0 22 12 2003 Distribution Classification Public Distribution MSS ZI Quadstone Paramics V4 2 Modeller User Guide Paramics is a registered Trademark The contents of this document are the copyright of Quadstone Limited All rights reserved 22 12 2003 3 0 Pu Ste QUADSTONE 16 Chester Street Edinburgh EH3 7RA Scotland Telephone 44 131 220 4491 Facsimile 44 131 220 4492 http www paramics online com Quadstone Paramics V4 2 Modeller User Guide Project title Quadstone Paramics v4 1 Document title Modeller User Guide Document Identifier rrb pv4 relO1 Distribution Classification Public Document history Personnel Date Summary Version Scott Aitken Richard Braidwood 22 12 2003 3rd draft 3 0 Approval List Scott Aitken Richard Braidwood Quadstone Distribution List Public Distribution Document Ownership and Confidentiality This document and all ideas methodologies algorithms design Notes descriptive software text etc contained within remain the sole property of Quadstone Limited This document or any subpart of its contents must not be distributed in whole or part and in any medium to any third party not listed on the distribution list provided above Any non Quadstone employee listed on the distribution list provided above must seek the express permission of Quadstone before divulging
58. ange the demand level type the required value in the text box and press Apply Note The percentage increase or decrease in trips is shown next to the arrow display The above procedure changes the total number of trips from a zone i e the row total in the matrix however individual element values and column totals can also be changed The elements are changed using the Edit Demands icon and selecting the from zone with the middle mouse button as above and the to zone with the right mouse button The destination zone is highlighted in green and the Demand Editor window shows the trips for the individual matrix element i e from zone to zone The number of trips is edited as described above For column totals all trips destinating in a zone the procedure is the same as for all trips originating with the exception that only the right mouse button is used to highlight the appropriate destination zone Exercise 16 Use the Demand Editor to increase the flow from Zone 3 by 10 and check the increase in individual matrix element values The increase in demand from Zone 3 to all individual zones will be in the region of 10 with some adjustment for rounding within the software The global demand divisor may also be edited to produce global increases or decreases in demand Note At present the Demand Editor can only be used to change the existing coding for the demand For example it cannot be used to introduce another matrix of t
59. as coded with period 1 start 08 10 00 then 7 of the demand will load between 08 10 and 08 15 with the last 9 loading from 09 05 to 09 10 After completing Exercises 16 to 18 there will be a new demands new vehicles file and a profile file Click the Close button on the Paramics File Editor to save and reload the changes to the profiles The coded demand periods can be checked by selecting View gt gt Show Periods The periods will be displayed in the Reporter window 5 5 Fixed Demand Some types of traffic moving through road networks are defined as travelling along preset routes and are not permitted to choose alternative routes For example service PT vehicles LRT trams etc have set routes and defined points that passengers board on exit vehicles Modeller can be used to define these set routes and the locations where passengers load unload from the vehicles Although the following is referred to bus route coding it can apply to other fixed route demand types such as LRT trams guided PT vehicles etc This is possible because the specification of vehicle types in the Vehicles Manager allows the user to code different vehicle characteristics for trams PT vehicles LRT etc although they may all be defined as fix routes For example if the length acceleration deceleration and top speed of LRT are known then a separate fixed route vehicle type can be defined The actual route of the LRT vehicle would then be coded using the Bus Route
60. as the cheapest cost In addition combinations of the different costs can be applied It is good practice to try 3 or 4 Generalised Cost Equations so the user can establish the sensitivity of the base costs Alterations maybe required to category cost factors See Modeller Reference Manual page 34 to stabilize the base route costs Quadstone Paramics V4 2 117 Quadstone Paramics V4 2 Modeller User Guide 11 Collecting amp Analysing Model Results II 11 1 Gathering Loop Detector Data Model statistics can be collected across the entire network and or at specific points in the network The section Statistics on page 72 describes how to collect network wide data For individual point information the detector must first be defined where data is to be collected i e code detectors and then specify what types of data are required This data can then be output to text files if requested in the measurements menu or can be viewed interactively as the model is running 11 1 1 Generated Text Files The Reference Manual lists the statistics that may be defined and output from the Measurements Manager This list is quite comprehensive in terms of general model output and has been developed from requests by current Paramics users However further statistics can be output if required for specific models In these circumstances the specification for the data required should be passed to the Paramics Support Team so any possible program devel
61. at a cordon is created enclosing the chosen junction intersection The following links are the entry point to the cordon 7 8 66 17 132 12 37 31 Open the Editor Toolbar and select Edit Strategic Routes Individually select each entry link using the middle mouse button while holding down ctrl All entry points should be marked as Green Quadstone Paramics V4 2 115 Quadstone Paramics V4 2 Modeller User Guide The blue area highlighted should be minimised to the smallest possible area by placing the exit points as close to the junction intersection as possible The following links are the exit points to the cordon 35 15 17 66 11 133 31 37 Individually select each exit link using the right mouse button while holding down ctrl then Save and Refresh All entry points should be marked as green and all exit points should be marked as red the blue area highlighted should be constrained within the marked entry and exit links This is the area that the AON assignment will be applied Select File gt gt Reload Network and run the simulation The user will observe that vehicles no longer route via the on and off ramps 10 6 Generalised Cost Coefficient The Generalised Cost Coefficients can be used to control the way in which perceived cost is represented by weighting time distance and toll pricing This provides the user with a certain degree of control over the base route choice decisions made by each vehicle in
62. ate comments It is likely that the movement of vehicles through the junctions Intersections is not accurate particularly at the small roundabout As mentioned previously this is the stage when the positioning of kerbs stop lines and adjustment of the network description should be considered to improve vehicle movements through these control points These positions should be changed based on the modellers local knowledge of the network through site observations and from experience of building other networks For the purposes of this tutorial some of these control points have been adjusted and are contained in the network Training dembuild1 Load this network using the function File gt gt Open and select the network Training dembuild1 46 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 5 2 1 Demand Editor The second method used to adjusted the amount of demand is through the Demand Editor function Open the Editor Toolbar and select the Edit Demands icon In the Simulation window click with the centre mouse on a zone The zone will be highlighted in purple and the Editor Toolbar window will display the option Modify Demand By selecting Modify Demand the Demand Editor window appears to show the Global Demand Divisor and the total number of trips from the selected zone to the text box Demand Editor Global Demand Divisor r Zone 047 to Zone 046 Matrix 1 D NIA Apply OK To ch
63. ately loaded onto the network It is therefore advisable only to use this option to change the simulation clock time when testing the input profiles etc and not to analyse overall model results If you allow the simulation to continue to run at 08 15 the Status Report window will produce the following message and vehicles start to load onto the network Switching from period 4 to period 1 Note That the simulation clock now shows 1 reflecting that period 1 has been activated Then at 8 30 the Status Report window shows the message Switching from period 1 to period 2 The report that some files have not been found relates to network files for traffic signals priorities and time dependent restrictions links Modeller automatically searches for these files if demands 1 demands 2 etc have been specified The program associates links 1 and priorities 1 to demands 1 However if no time specific network files exist Modeller reads as default the links file and the priorities file and displays the warning File not found in the Reporter window By selecting the View gt gt Show Periods option the user can check the times associated with each period The report will show the following Period 4 00 00 00 to 08 14 59 Period 1 08 15 00 to 08 29 59 Period 2 08 30 00 to 14 04 59 Period 3 14 05 00 to 16 19 59 Period 4 16 20 00 to 23 59 59 98 Quadstone Paramics V4
64. ave been coded click OK and Save and Refresh An important aspect of coding roundabouts in Paramics is coding approach visibility Exercise 11 Choose Edit Links from the editor toolbar an approach link and then select Modify Link gt gt Link Modifiers The default value for Visibility is 0 metres change this value to 10 metres Repeat this procedure for all approaches Note this is a very important attribute when calibrating roundabouts See Modeller Reference Manual page 86 Quadstone Paramics V4 2 39 Quadstone Paramics V4 2 Modeller User Guide Exercise 12 Select and code the traffic signals shown in Figure 7 and Figure 8 Junctions Intersections D and E respectively 4 4 4 Kerbs and Stop Lines Kerbs and Stoplines can generally be described as control points See Modeller Reference Manual page 91 Each link has an inside and outside kerb point at the start of the link and at the end i e 4 kerb points per link a pair of start kerb points and a pair of end kerb points By default locus points or control points are defined along a line joining each pair of kerbs so that for each lane on a link a locus point is drawn at the centre of the lane Vehicles have to pass through these locus points as they move through a junction intersection For example if locus points for the in and out links of a 90 degree turn are very close to each other then vehicles making that turn are forced to slow considerably
65. ay file identifies the origin destination the path in terms of link names the time taken to travel along each link and the count of vehicles A full description and specification of files generated by Modeller is given in the Modeller Reference Manual To extract release rates and queuing information select Edit gt gt Measurements gt gt Periodic and select Release Counts This will launch the Set Interval window that allows the user to choose the time period for which they wish to collect statistics in this instance it is 5 minutes Repeat the process for Queues Some files are time specific and the user can define the intervals the data is collected For the above queuing information will be output to files link queues 00 05 00 link queues 00 10 00 etc Note Midnight 00 00 00 is always taken as time 0 regardless of the simulation start time For example if the queue data is collected every 10 minutes 43 seconds and the simulation starts at 08 00 00 then the first queue file will be link queue 08 02 15 Examples of the output files for queue counts and release counts are shown below File link queues 07 45 00 qa ay ee ce rie E a eU fc E EE T4 Link Lane Q Start ft End ft Size Time Blocked Pi E eo ae cd ECC ir E 1 2Db 2 1 16 0 306 2 15 07 45 00 2a 2b 2 cli 10 1 31 0 2 07 45 00 i 4 3 2 3 0 0 278 6 14 07 45 00 t033 2 1 0 0 333 4 14 07 45 00 2b
66. bstantial but less major flows from west to south and from north to east 5 3 Vehicles Specification The Vehicles Manager defines the characteristics of each vehicle specifies the demand matrix associated with each vehicle and describes assignment information for each vehicle type The assignment information is explained in detail in the Traffic Assignment I section while this section deals with the vehicle characteristics and the association between the Vehicles Manager and the demands file 5 3 1 Vehicle Characteristics Vehicle types may be coded either as default or as user defined vehicle types The default types are car Igv light goods vehicle ogvi ordinary goods vehicle class 1 ogv2 ordinary goods vehicle class 2 coaches or as service PT vehicles large or minibus Each vehicle has physical attributes associated such as length height width weight top speed acceleration and deceleration For the default types these are shown in the following table Type Length Height Width Weight Top Speed Maximum Maximum m m m tonne km h Acceleration Deceleration m s m s Car 4 0 1 5 1 6 0 8 158 4 2 5 4 5 Lgv 6 0 2 6 2 3 2 5 126 0 1 8 3 9 Ogvi 8 0 3 6 2 4 15 0 104 4 1 1 3 2 Ogv2 11 0 4 0 2 5 38 0 118 8 1 4 3 7 Coach 10 0 3 0 2 5 12 0 126 0 1 2 3 7 Minibu 6 0 4 0 2 5 8 0 61 2 1 1 3 2 S Bus 10 0 4 0 2 5 12 0 61 2 0 9 3 2 The user can override any physical characteristic by changing the specification within drop
67. category cost factors 6 2 1 Cost Factors Cost factors are multiplication factors that are applied to particular road categories or to individual links in the network 6 2 2 Category Cost Factors The category to which cost factors are to be applied is selected using Edit gt gt Categories gt gt Operational The default link cost calculated as the time taken to travel along the link at free flow speeds is multiplied by the cost factor These factored costs are then used in the routing cost calculations For example roads through residential areas may be a less attractive alternative to district or principle roads Although these types of road may all have the same speed limit the user can attach a cost factor to the residential links to change the calculated cost of the residential route If a cost factor is associated to a category all links with that coded category are affected Note Category cost factors are only seen by unfamiliar vehicles unless the Assignment gt gt Category Cost Factor Visible to All is checked in the Configuration Manager Edit gt gt Confioguration Quadstone Paramics V4 2 61 Quadstone Paramics V4 2 Modeller User Guide 6 2 3 Link Cost Factors The link to which cost factors are to be applied is selected using Edit Links Modify Link Link Attributes The default link cost calculated as the time taken to travel along the link at free flow speeds is multiplied by the cost factor These
68. ck Period 08 15 00 01 05 00 5 0 00 05 00 The statistics directory Paramics data network Log run 001 will contain files called feedback 08 30 00 etc Note The Configuration Manager may also include turning penalties visible to all if the feedback costs were to be applied to unfamiliar drivers The user can analyse the results by loading these feedback files into a spreadsheet or similar tool In addition the averaged list of turning penalties can be put back into the network data directory as a file called feedback This file will be loaded with the network and used to determine the initial turning penalties which normally all start out at zero seconds delay One potential use for this option could be to run the model initially to calculate the feedback costs at say 5 minute intervals for an hour of simulation These costs could be averaged using a spreadsheet or similar tool and then imported back into the model as the initial set of turning costs using the file called feedback The averaging should damp the effects of oscillating feedback costs and may give a more accurate set of initial costs Note It should be highlighted that this option has been incorporated to increase the flexibility for changing the routing and has not been included as a recommended procedure Therefore this problem should be implemented with caution as with all models there should be an extensive set of checks on the traffic routings 112 Q
69. con for lane 1 will be selected when the window is first opened Restrictions Manager restriction 1 Low Bridge New Restriction 2 PT Only Restriction 3 Trucks Copy Delete m Resulting Vehicle List 11131416 Barred gt Physical vehicte Types Name Low Bridge Height m bo o Max 0 v Weight tone 000 Max v wieth m po vx Also Allowed Colour E Fill Style Hatched Note Lane display icons will show the lane numbers with lane 1 kerbside and the outmost lane the median lane Modeller lane numbers are always identified numerically from the kerbside lane to the median lane To select the lane that restrictions are to be applied to single click with the eft mouse button over the square icon representing the appropriate lane All edits on the restrictions described below apply to this currently selected lane only unless the Apply to All button is selected Below the lane icons there are two toggles to switch the current lane to be Closed or PT Only A lane that is closed will not allow any vehicles to enter it irrespective of the other restriction settings A PT lane is initially restricted to all vehicles except those that are marked as being PT i e fixed demand as specified in the Vehicle Type Manager Beneath the lane icons and closed PT lane settings there are is a combo box that contains restrictions created within the Restrictions Manage
70. d 878 ft 1435 ft zone 5 4 Carparks 1 carpark 1 252 ft 1170 ft 435 ft 1168 ft 420 ft 1290 ft 253 ft 1296 ft max 252 ft 1296 ft min 435 ft 1168 ft centroid 340 ft 1231 ft Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Car parks can also be barred to specific vehicle types Complete the following exercise to bar all vehicles except cars from using the car park Exercise 35 Ban all vehicles except cars from the car park To do this add two car parks for Zone 2 and Zone 5 Associate one car park to each of these zones and Save and Refresh the changes Edit the carpark file to include the following data High Street Park Lane i Carpark 003 Figure 16 Car Parks added to Zone 2 and Zone 5 For the Town Centre CP add the following line to the carpark file to bar LGV OGV1 OGV2 and coaches Note This must come after the line that starts with the word initial Vehicle types barred 12 13 14 15 For the new car parks add the following line to the carpark file to bar all cars Vehicle types barred 1 Quadstone Paramics V4 2 93 Quadstone Paramics V4 2 Modeller User Guide After completing this exercise observe the different routes for cars and all other vehicle types The walking time between the parking area and the zonal trip end can be specified in the walkt
71. d zoom down In the View dropdown menu click on model layers then the dotted line to tear off this menu Toggle Zone Boundaries on and off by clicking this option using the Jeft mouse button Quadstone Paramics V4 2 13 Quadstone Paramics V4 2 Modeller User Guide Toggle the navigator panel on off using Tools gt gt Navigator Toggle the tooltips on off using Tools gt gt Options gt gt Tooltips i General Options E LI LI LI E M M M M M M M Su lt i Exercise 2 Click on View gt gt Text and tear off the menu for Node Names Display node names by clicking the left mouse to toggle Node Names on 14 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Click on Tools gt gt Display Settings then Text Sizes in the Display Settings window and change the text height by clicking and holding down the left mouse button to move the slider bar Display Settings Click on Help gt gt Hotkeys to show shortcuts to toggling objects Quadstone Paramics V4 2 15 Quadstone Paramics V4 2 Modeller User Guide 3 2 Paramics Editor The Editor Toolbar is used to modify the network data dynamically Editing can be done at any time even while the simulation is running There are four ways to open the editor The first two use dropdown menus either Edit gt gt Network or View gt gt Toolbars gt gt Edit The third most commonly used method is lt Ctrl E gt After opening the edit
72. de That is click on the detector with the middle mouse button highlights the detector in purple hold down the lt shift gt key and either drag or click to a new position along the link Save and Refresh Note Detectors cannot be moved past the ends of the link The detector loop will be placed on the link as close as possible to the b ue cross hair Once the loop detectors have been specified and saved model data can be observed interactively at the loop or can be output to ASCII files for analysis These options are described in the Collecting amp Analysing Model Results II section To show the detectors select View gt gt Model Layers gt gt Detectors Note It is not recommended to place the loop detectors at the extreme edges of a link as this may create inaccuracies in the readings as vehicles transfer between links It is recommended that a distance equal to double the longest vehicle length be used to separate the end of the link and the loop detector 82 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 8 3 2 Sign Posting A hazard defined as a network characteristic or feature that may cause a vehicle to change lane for example a road narrowing lane drop or a signalised junction intersection The term signpost is used to include hazards as part of the driver behaviour representation of the simulation Although hazards exist on nodes they are represented by a set of parameters associated wi
73. dentify individual vehicle specification Select a vehicle by positioning the mouse pointer on the vehicles and pressing the middle mouse button A full description of vehicle types and characteristics in contained on page 49 Note V3 0 compatibility for middle mouse button selection can be activated within Tools Options Vehicle Picking 20 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 3 3 Exiting Paramics Modeller and Archiving There are two ways to quit the Modeller program The first is dropdown menu File gt gt Exit that also allows the user to save snapshots at that point in the simulation and to save the preferred options e g to show Zone Boundaries etc The second method is to press the lt escape gt key This automatically quits Modeller and saves the options selected at the instant of quitting the program Warning It is important to note that if changes have been made to the network without applying Save and Refresh then all changes will be lost Exercise 6 Quit Modeller and then re open from the Modeller icon to see the network changes that have been saved Use the simulation mode icon to change the mode to single step simulation Run the simulation in single step mode Note The simulation clock has return to the value set as default This default simulation start time can be reset to the users requirements in Edit gt gt Configuration gt gt Base Parameters The user ma
74. down menu Edit gt gt Vehicles For example if two specific car sizes were identified with one vehicle being 4 8 m long while the other was 4 0 m long Quadstone Paramics V4 2 49 Quadstone Paramics V4 2 Modeller User Guide iiVehicle Type Manager The colours associated with the default vehicle types are cars white lgv green ogv1 blue ogv2 magenta coach pink service PT vehicles yellow large white minibus These colours can be changed by including a colour specification within Edit Vehicles Physical Attributes 50 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 5 3 2 Vehicle Proportions Vehicle types are associated to each matrix in Edit gt gt Vehicles gt gt Demand amp Assignment If a matrix defines only one vehicle type when 100 of that matrix is allocated to the appropriate vehicle type However if the demand matrix is built for a combination of vehicle types for example an all vehicle matrix then proportions of this matrix are used to disaggregate to individual vehicle classes such as car lgv hgv etc Exercise 17 Edit the Vehicles Manager to divide an all vehicle matrix so that 78 are cars 10 are Igv s 6 are ogvi 3 are ogv2 and the remaining 3 are coaches Also include vehicle types for miniPT vehicles and PT vehicles Open Edit gt gt Vehicles and to launch the Vehicles Manager Vehicle Type Manager Type 11 Minibus Type 12 LGY
75. e This functionality enables comparison between parking supply and demand to be modelled If for example a specific trip was described as originating from a shop on the High Street but no parking was available along High Street then the vehicle for this trip may have parked some distance from the shop It is obviously important that the simulation of traffic movements reflects as accurately as possible the starting point and end point of the vehicle trip The following example shows how parking areas can be coded in Modeller Exercise 34 Open the network Training dempark2 and add two one way links as shown in Figure 15 Each link should be coded as category 1 with one lane of 12 0 ft and speed as 30 mph High Street Park Lane Figure 15 Car Park Coding 90 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Using the Editor Toolbar select Edit Carparks and Add New Carpark Position the car park along the new one way links as shown in Figure 15 If required reposition the car park vertices in a similar way to editing zone vertices refer to the Zone Editing section on page 19 Select the Carpark Options icon to edit the car park name to Town Centre CP with a capacity of 300 vehicles and an initial number of 150 vehicles in the car park Select OK and then Save and Refresh the changes Pl Carpark Options x Name Town Centre C Capacity 30
76. e 3D coordinates Exercise 8 Using the Translation Scaling and Rotation functions found in Edit gt gt Overlay gt gt Position match the overlay grids to the Modeller Simulation window grids To help in differentiating between the overlay grid and the Modeller grid change the colour of the Modeller grid using Edit gt gt Overlays gt gt Options gt gt Colour 4 3 Skeleton Network Coding A skeleton network defines the position of the main nodes and links in the model Before starting to code the skeleton network the user should define units and preferences refer to Exercise 7 Match the location of the nodes to the junctions intersections shown in the overlay Open the Editor Toolbar and selecting the Node icon then select a node by moving the mouse arrow into the Simulation window and selecting the middle mouse button The node closest to the mouse arrow position will be highlighted in purple To move the position of the node hold down the lt shift gt key and press the centre mouse key at the same time Note The node position will change to the point where the mouse arrow is currently positioned Alternatively drag the node position by holding down the lt shift gt key together with the middle mouse button and moving the mouse position around the Simulation window New nodes and links should be added using the methods described on page 16 Initially make all links category 1 and ensure that the node positions match the overlay
77. e List The Vehicle Types display window in conjunction with the selection policy combo box specifies to which vehicle types the restriction will affect See Page 20 of the Modeller Reference Manual Groups of vehicle types can be specified by using the mouse to drag the selection or the shift and lt ctrl gt keys Alternatively the cursor keys and the Enter or Return key can be used to specify vehicle type groups After restrictions have been applied the colour of the lane icon changes to show the status of the lane as follows e Open grey box no restrictions on this lane e Green hashing lane is a PT lane e Yellow hashing lane is closed e User defined colour shading custom restriction Combinations of purple yellow and green are possible for combinations of settings For example yellow and green hashing represents a closed PT lane These can be customised by the user if required within the Restrictions Manager Exercise 30 Create a new restriction that restricts vehicle types 13 and 14 i e barred to HGV vehicles Apply the new restriction to the Southbound link of the High Street After saving and refreshing the changes show the restriction using View Model Layers gt gt Restrictions Start the simulation to see that no HGV s use lane 2 of the restricted link Quadstone Paramics V4 2 81 Quadstone Paramics V4 2 Modeller User Guide 8 2 1 Turn Restrictions In addition to restricting lanes
78. e charged for the use of specific sections of road these costs should also be included to allow for drivers willingness to pay In Paramics the base cost for links is calculated using the following generalised cost equation Cost a T b D c P a is time coefficient in minutes per minute default 1 0 b is distance coefficient in minutes per kilometre default 0 0 o is toll coefficient in minutes per monetary cost default 0 0 T is free flow travel time in minutes D is the length of the link in kilometres P is the price of the toll in monetary cost units 62 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 The monetary cost can be in any unit provided it is consistent with the unit used in the Categories Manager For US mode the distance coefficient is in minutes per mile The above equation controls the representation of perceived cost by weighting time distance and toll pricing The coefficients for time distance and toll price are changed using the Configuration Manager Exercise 23 Change the generalised cost coefficients from default pure time to pure distance i e for the above equation a 0 0 b 1 0 and c 0 0 Select Edit gt gt Configuration gt gt Assignment menu and edit the configuration to include the cost coefficients as detailed above Click Apply and OK l Configuration Base Parameters Core Assignment options Breakpoints Feedback Period 00 00 00 Closest
79. e network It is usually best to leave most editing of control points to the calibration stage of the project development cycle 4 5 Infrastructure Additional information such as street names network names etc can be added to the model to help identify specific locations or model options Note Although this is background information and does not affect the simulation it is extremely helpful when demonstrating the simulation and results to non technical people 4 5 1 Annotation The annotation tool is used to add comments and network identifiers such as titles street names and descriptions of the model options The following exercise describes how annotation is included in the Modeller title bar and in the Simulation window Exercise 14 Code annotation to change the Network Name include a title for model network underlined and specify street names etc Refer to Figure 3 for specific street names In the Network Editor Toolbar select the Edit Annotation icon and the two options Add and Network Name appear Click on the Network Name icon so a window appears showing Network Name and Icon Name H Network Name Ea Icon Name New OK Cancel Change these by typing the new network and icon names in the appropriate boxes and press OK Quadstone Paramics V4 2 41 Quadstone Paramics V4 2 Modeller User Guide The new network name is displayed in the Title Bar at the top of the Paramics Main window The icon name is dis
80. ecked Firstly from visualisation of the traffic movements secondly from the demand or sector display and thirdly from statistics output from the model runs A large number of statistics can be collected but in terms of checking the amount of traffic loaded onto the network the release counts are particularly useful To collect the release counts specify in the measurements menu the following generate release counts at 5 minute intervals Note Statistics can be collected down to 1 minute intervals Set the Configuration Manager to have a start time 08 15 00 and simulation time 01 05 00 then and start the simulation Quadstone Paramics V4 2 103 Quadstone Paramics V4 2 Modeller User Guide The simulation will run from 8 15 to 9 20 and the statistics will be written to files in a sub directory of your present working directory Log run 001 The files are automatically named as release 08 20 00 release 08 25 00 etc Typical output for the first 15 minutes of simulation i e time period 1 8 15 to 8 30 are shown below Seed 5 08 20 00 Matrix 1 1 2 3 4 5 6 7 Total Block Tries y 0 0 0 1 1 4 0 6 0 6 2 0 0 0 0 0 0 0 O0 0 0 3 2 2 0 2 0 3 3 12 0 12 4 1 1 1 0 2 1 2 8 0 8 5 6 1 2 2 0 0 1 12 0 12 6 2 1 1 1 1 0 4 10 0 10 7 8 3 1 2 0 1 0 TS 0 15 19 8 5 8 4 9 10 63 0 63 08 25 00 Matrix 1 1 2 3 4 5 6 7 Total Block Tries 1 0 4 1 2 1 5 2
81. een and effective green phases of the traffic signal The dark blue box that borders one set of the green amber yellow and red boxes indicates the phase times shown in the Signal Times tab Select the OK button then click Save and Refresh to save the changes made to the network Then using the middle mouse button select the same node and Modify Junction To toggle between phases click with the left mouse button on the blocks of green amber yellow and red Note Node descriptions in the Priority section changes to read Phase 1 2 or Phase 2 2 The green and red times in the Phase Length will also change if the two phase plans are different 36 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 A white line is also displayed in the Signals Display parallel to the Y axis This indicates the exact point the signal cycle plan is assumed to start The position of this line changes as the simulation runs in accordance with the simulated time The Phase Length section of the Signal Display window contains functions enabling the user to modify the Green and Red time of individual phases These values can be modified by the user using arrow buttons located next to the relevant attribute The total time allocated to each phase and the overall cycle times remain fixed if the Balance is set to This For Fixed Duration signals modifications made to the red and green times of the phase can to compensated for in the selected phase
82. eese era exa a T ireeka viu Es TER UEFA erei 41 5 Traffic Demand T eerie teer etr menn xn Fr Y nex re Y xn x ed vx nex xe teas 44 5 1 Zone Specification occi ecce ey e em vv RR CS A ENT YR 44 5 1 1 PAel Enid tec 44 5 2 Demand Specification cccccccccesceseeeeeee eee eee esse eee nean neas nnn 46 5 2 1 Demand Editor 5 oce o eerte six Rue etae Re eu TRE Dd 47 5 2 2 Display Demand S 2 5 n o ex ex rmx re sv dese Ti E ERI NEYNEETNENR ENTE 48 5 2 3 Sector Editor and Displaying Sector Demands sssss 48 5 3 Vehicles Specification sexe e d VER M spe s 49 5 3 1 Vehicle Characteristics oret Ere Ra P e RS 49 5 3 2 Vehicle ProportiOns s uc coe nenene ETAD EIER R 51 Quadstone Paramics V4 2 1 Quadstone Paramics V4 2 Modeller User Guide 5 4 Profile Specification esssssessseseeseeee nennen nennen nennen nennen SESS GEES EES 52 5 5 Fixed Demand oec vete ea e ete qc rex ve eva ia 53 5 5 1 PT ROUTES ei 54 5 6 R n Initialisationi ocior rece ek naa es ee aa ae 55 5 7 Additional Exercises ccccccccceceece eee eee esse estes nese eee nana seas nnn nnn 56 6 Traffic Assignment l i EROR Ee Lae E e d EE Ea 61 6 1 Introduction zer rer ve E ae D REATO A deve 61 6 2 Network Coding uei eerta line ek iE ova e KR EXE A ER EAE ERE TEE i EE 61 6 2 1 COSE FAClOMS me 61 6 2 2 Category Cost Factors aios ioaren een xen den
83. er Guide 4 4 2 Traffic Signal Junction Intersection Select the node shown as Junction Intersection B in Figure 3 and refer to the junction intersection details shown in Figure 5 Again select Edit Node and Modify Junction icon from the Editor Toolbar In this case use the Signal Times tab If a junction is a priority controlled intersection then all functions are greyed out with the exception of Signalise By selecting the Signalise function a default signal plan appears in the Signal Display section and all functions in the Signal Phasing Signal Times tab are activated Edit Junction 10 Selected Priority Signal Times amp Ped Turn Movements Lane Allocation Signal Display External Cycle Time Turning Movements Phase 1 3 Cycle 60 00 Fixed Offset 0 00 E Mediun Minor E Phase 113 a Balance This w Delete Add mPhase Length 34 Green 20 00 E Actual ow Red 0 00 5 P m Actuation Times m Preset Junctions 20 00 20 00 40 00 0 00 m m DUET 0 This Next Max Min Show Barred Turns The Signal Phasing Signal Times can be displayed in three different ways The display is selected using the View Style combo box Select the Group Fixed display from View Style on the signal display tab The default signal plan shows red green and amber yellow rectangles to depict the red actual gr
84. es with a first set of examples relating to urban network coding and a second to highway network coding There is a degree of overlap between these two stages where the coding is applied to both urban and highway networks Knowledge of traffic modelling techniques and procedures is an advantage and experienced traffic modellers should recognise and be familiar with a number of the techniques used in Paramics Modeller However the programme s intuitive nature means that all users should quickly become comfortable with the development cycle for model building 1 5 Reference A full explanation of Modeller commands and a description of associated ASCII output statistics files is contained in the Modeller Reference Manual 6 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 1 6 Conventions used in this Manual 1 Text to be typed at the keyboard is shown in the format type this exactly 2 Messages and ASCII files generated by Paramics are shown as follows Now using standard demands and zones files network has also been Saved Refreshed 3 Paramics filenames occur in the following bold text configuration 4 Paramics commands selected by clicking with the mouse keys are shown in bold text as follows File gt gt Edit The gt gt shows the direction of sequence of the commands starting with the left command All commands to the right will be sub commands of the pre
85. ey Position Mesh Name few overlay ID 2254 File C PROGRA 1 PARAMI 1 data IPDATE 1 DEMP amp R 1 foverlay d Mesh File s Pig Algse f ade NUR Overlay Tiled OK Apply Cancel Once the overlay is loaded you can select the entry from the list and position the associated overlay in the Paramics 3D world The selected overlay will be highlighted in the simulation graphics window in pink The Position tab for overlays enables the user to translate scale and rotate the overlay in 3D Selecting OK commits your changes to file Cancel discards any changes Note When nodes are added to the network or existing nodes are re positioned the overlay data may need to be reloaded and repositioned This is due to a non linier correlation existing between the physical position of nodes and the visual position presented in the 3D Paramics world This process is necessary to enable 3D graphics To avoid this it s best to use a full Save and Refresh each time you add a new node to the network while you are using background overlays to aid placement 24 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 It is recommended when coding a new network using a background overlay to first position all the key nodes in the network mapping out the extents of the network before concentrating on the detail and the nodes towards the centre This will help reduce the potential for physical visual mismatches in th
86. factored costs are then used in the routing cost calculations For example roads through residential areas may be a less attractive alternative to district or principle roads Although these types of road may all have the same speed limit the user can attach a cost factor to the residential links to change the calculated cost of the residential route If a cost factor is associated to a category all links with that coded category are affected Note Link cost factors are seen by both familiar and unfamiliar vehicles For more information regarding cost factors together with explanations of familiar unfamiliar drivers and major minor links refer to the Modeller Reference Manual 6 3 Model Parameters A number of model input parameters may be changed to affect model calibration Most of these parameters are contained in an initialisation menu called Configuration Manager Edit Configuration Some parameters relate to the behaviour of the vehicles while others such as feedback perturbation and generalised cost relate to the route choice model Changes to generalised cost coefficients are explained in this section while following the sections deal with perturbation and feedback 6 3 1 Generalised Cost Coefficients The travel costs referred to in the above paragraphs represent a combination of factors that drivers take into account when choosing routes The most important of these factors are time and distance Where tolls ar
87. ge for next lanes For example with the above turn 9 7 17 the range 1 2 could be specified as opposed to 2 2 This shows that lanes 1 and 2 on the exit link could be used for that turning movement Also if more than one lane is permitted for the approaching traffic then next lanes may be specified for each individual lane select node 3 and turn 4 3 2d to show that next lanes may be coded for lanes 1 1 gt and 2 2 gt A further option can be used to force traffic to stay in lane Using the Editor Toolbar select the short link on High Street link 7 17 north of the Park Lane Kelly Lane High Street junction intersection Then Modify Link gt gt Show gt gt Flags and toggle the Stay in Lane function to on Apply and Close Save and Refresh and restart the simulation Note how the traffic is not permitted to change lane over the full length of the link Quadstone Paramics V4 2 109 Quadstone Paramics V4 2 Modeller User Guide 10 3 Averaging Feedback Costs Feedback costs are in affect turning delay costs calculated during a simulation run In the Configuration Manager a feedback time is set say 5 minutes and for each 5 minute time step Modeller counts the vehicles making individual turns and the time these vehicles take to turn The delay per vehicle is then calculated and stored in the program as a cost In addition a smoothing function is used to limit the oscillations in costs The overall effects are explained i
88. h origin and destination zone The cost and distance for each route is displayed in the Status Report window In the View gt gt Routes window select Unfamiliar from the Driver Type dropdown menu and repeat to show routes between links and zones All routes should be similar for familiar and unfamiliar driver types The percentage of familiar drivers is specified in the Vehicles Manager 64 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Using the Edit gt gt Markings function mark all vehicles to Zone 3 and start the simulation Note vehicles to Zone 3 do not use Kelly Lane 6 4 1 1 Major Minor Links In the Categories Manager links can be described as major or minor Unfamiliar drivers will use major roads in preference to minor roads akin to using sign posted routes Familiar drivers are more likely to divert to minor routes as they are assumed to know the road network and possible short cuts or rat runs In Paramics the link costs for unfamiliar drivers on minor roads are assumed to be twice the cost of an equivalent major road To show the major minor classification select View gt gt Links gt gt Major Minor Major links are shown in red while minor links are blue Exercise 24 Use the Editor Toolbar to select the High Street links and re code as category 2 links Be careful to keep the road widths the same as the original coding Save and Refresh the changes The View gt gt Links g
89. h ramp link has 2 lanes the user can toggle the Separate Lane Merging function in the Paramics Input window to code two on ramps i e one per lane Paramics will split the lanes and create two single lane on ramps Exercise 27 Code the roads connecting on and off the freeway as ramps and slips The ramp length is 700 ft and slip length is 400 ft In addition a minimum ramp time of 1 s a headway factor of 0 8 s and a ramp aware distance of 150 ft should be coded Include a new road category in the categories menu as follows Category Lanes Speed mph Width ft Median Width ft Type 40 1 60 0 12 0 Urban Code one way links for the slip link and ramp link as category 40 The slip link should connect directly to the highway links The ramp link may either connect or may be disconnected Using the methods described above code the ramp link length 700 ft and slip lane 400 ft After a Save and Refresh you may find that the default position for kerbs does not give a good representation for the road layout at the ramp and slip These default positions are calculated within Paramics in relation to the intersection of the straight line links Therefore when links are curved or at obtuse angles these default positions may not be representative of the actual kerb positions Quadstone Paramics V4 2 77 Quadstone Paramics V4 2 Modeller User Guide Try editing the kerb positions to give a better match with the overlay in t
90. he Editor Toolbar choose Edit Kerb points and in the Simulation window select kerb points and reposition Remember that the full implications of repositioning kerbs and stop lines may only become clear after traffic has been loaded onto the network Therefore the bulk of the work in repositioning control points should be carried out during the traffic assignment stage Exercise 28 Code the junction intersection details for Junctions Intersections F and G shown in Figure 12 and Figure 13 respectively Category 21 1 lane 12 1 ft Category 21 1 lane 12 1 ft 30 mph urban major 30 mph urban major ia Category 22 2 lane 24 0 ft 30 mph urban major Category 22 2 lane 24 0 ft 30 mph urban major Category 40 1 lane 12 0 ft 60 mph urban one way Figure 12 Junction Intersection F Priority Junction 78 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Category 22 2 lane 24 0 ft 30 mph urban major Category 21 1 lane 12 1 ft 30 mph urban major Category 21 1 lane 13 1 ft 30 mph urban major a jh SS Il Category 22 2 lane 24 0 ft li 20 mph urban major e Category 40 1 lane 12 ft 60 mph urban one way Figure 13 Junction Intersection G Priority Junction 8 1 4 Node Bounding Box Paramics identifies the maximum and minimum grid co ordinates for all nodes in the network and uses this informatio
91. ick to show the routes from Zone 1 to Zone 2 A blue band is displayed in the Simulation window Repeat the View gt gt Routes selection to show the paths between different origins and destinations Note The cost and distances are shown in the Reporter window Then using the Edit gt gt Markings function mark all vehicles from Zone 1 to show their routes through the network Exercise 21 Renumber the zones so that Zone 2 is now Zone 57 and Zone 5 becomes Zone 30 To complete this exercise you need to change two files the zones file and the demands file Edit the zones file using the Editor Toolbar select the File Editor then gt gt Demand gt gt zones to include a lookup table that defines the new names for Zones 2 and 5 Refer to the following example Zone Count 7 lookup 257 5 30 zone 1 6 1594 ft 651 ft 1631 ft 1096 ft 1510 ft 1104 ft 1481 ft 815 ft 1116 ft 844 ft 1088 ft 708 ft max 1088 ft 1104 ft min 1631 ft 651 ft centroid 1403 ft 870 ft zone 574 633 ft 788 ft 636 ft 879 ft 110 ft 936 ft 110 ft 774 ft max 110 ft 936 ft min 636 ft 897 ft centroid 372 ft 849 ft Quadstone Paramics V4 2 57 Quadstone Paramics V4 2 Modeller User Guide The zone names should also be changed in the demands file so they match the specification in the zones file For example demand period 1 matrix count 1 divisor 1 Matrix 1 From 1 0 200 150 50 20 100 4 from 57 350 0 1
92. imes file These walk times are included in the calculation of cost for a driver to reach a particular zone See Reference Manual page 106 In some circumstances one car park may be associated with several zones By default suitable origin car parks are chosen at random but the destination car park is selected to achieve the least cost trip from origin to destination zone It is possible to specify in the Configuration Manager that the destination car park should be randomised and the closest origin car park chosen or that both the origin and destination are selected to minimise the trip time To specify car park origin and destination criteria other than default select Edit gt gt Configuration gt gt Assignment and Toggle on Closest Origin Carpark Toggle off Closest Destination Carpark or Toggle on Closest Origin Carpark Toggle on Closest Destination Carpark or Toggle off Closest Origin Carpark Toggle off Closest Destination Carpark Note In Modeller Version 4 1 vehicles continue to be absorbed into the parking area even after the capacity has been exceeded and conversely vehicles continue to be generated even if the current occupancy indicates that there are no vehicles in the car park Exercise 36 Edit the walktimes file to include times to walk between the Town Centre CP and Zones 2 and 5 Refer to Modeller Reference Manual 94 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 9 3 Time
93. ing on Clear All deselects everything Select the Modify Link icon to open a new window called Link Attributes Drag this window to a convenient position Link Attributes 5 32 Base Category 2 lanes 2 speed 30 mph width 8 0 m type urban major v Core Attributes Link Modifiers Flags Lane Modifiers Category info 30 Speed mph m 8 0 Width m NENNEN 2 Lanes mg 07777 OK Apply Cancel The link attributes of category speed width and lanes are automatically shown To view more link information select one of the following menus Flags Devices Link Modifiers and Category Info Use the slider bars to change the category the speed the width and number of lanes by clicking and holding down the left mouse key to drag the slider bar These attributes can also be changed by single clicking the left mouse button inside the grey slider bar windows Make a change to speed width or lanes and click Apply The changes can be included in the network using the Save and Refresh button 18 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 An alternative way to select a link is to use the Node function to highlight nodes at either end of a link Select a node at one end of the required link using the middle mouse button or in the Navigator Panel click on the symbol Select Middle Then select the node at the other end of the required link using the right mouse button
94. ive sections Selected Priority Signal Times Turn Movements Lane Allocation and Signal Display The Cycle and Phases sections refer to signalised junction intersection and will be dealt with later in this tutorial 32 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 I Edit Junction 3 Selected Priority signal Times amp Ped Turn Movements Lane Allocation Signal Display External m Selected Movement Turning Movements lecdiurm Minor Priority Major v Phase Multiples v Show Barred Turns m Restriction m Preset Junctions Save Import Delete The Selected Priority section contains a skeleton diagram of the priority T junction intersection with one movement highlighted with an orange arrow Along the orange arrow the priority associated with that turn is displayed in the priority combo box The priority may be MAJOR MEDIUM MINOR or BARRED To change the priority select the new priority from the combo box and click OK The display in the turn movements tab will show colour changes to the specific movement in the selected priority window See Reference Manual page 79 Note Highway links assume all priorities are major as this is one definition of Highway links A hierarchy of priorities exists in the order of MAJOR MEDIUM MINOR and BARRED MAJOR priority movements are free flow and not restricted by other
95. lans for each time period e g priorities 1 priorities 2 etc To edit the signal settings access the Editor Toolbar Node gt gt Modify Junction window Select Show Options gt gt Periodic and toggle the priorities check box to on Editor Options Cut amp Paste Scope Periodic Options Fie m Periodic Edit PT Lines Demands J Links Vehicles Then select a signal node and make changes to the signal timings and Save and Refresh these updates A new priorities file will be saved to priorities 1 if the simulation clock is set to time period 1 or to priorities 2 if edited in period 2 and so on By starting the simulation the user can see the switching of signal plans between different periods Quadstone Paramics V4 2 99 Quadstone Paramics V4 2 Modeller User Guide Note All phases must be defined in all periodic priority files For example if a signalised node operates 4 phases during time period 1 but only activates 3 of these phases during period 2 then both priorities files priorities 1 and priorities 2 must have 4 phases coded The phase not active in period 2 should be coded to contain zero red and green time Once a node has been coded as traffic signals during any time period then the node should be signalised for all time periods Although this is true a signal junction intersection may be coded so that it operates as a priority junction intersection To do this specify all movements a
96. lect All Selecting View Model Layers Lane Choices will allow the user to observe the signposting at this stage The layout in its current form ensures that vehicles lane choice decisions are made on the highway well in advance of 5 7 Exercise 33 In this example we wish to compliment the signposting implemented on Link 8 11 so that vehicles will be aware of the two upstream off ramps We can achieve this by applying further lane choices The first of the complementary lane choices will be applied to exit Link 5 7 Select Lane Choices from the Editor Toolbar again candidate links will be highlighted in cyan Select Link 8 5 this will highlight Node 8 A Node and Node 5 B Node To select the C Node for this signpost hold Crtl middle mouse button and select node 7 C Node the node will be highlighted in blue then select Add Lane Choice Rule to launch the Lane Choice Manager 86 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Select the Lames submenu choose Lane 1 and apply 100 to the lane In this example we are going to select specific vehicle types Select the Vehicle Types submenu and by holding Ctrl and middle mouse button select the following vehicle types e Types 123456789 Repeat this exercise for lane 2 Apply 100 to this lane and select the following vehicle types e Types 10 11 12 13 14 15 The second of the complementary lane choice will also be applied t
97. link with the hazard we wish to be extended Hold lt Crtl gt middle mouse button and select node 5 C Node the node will be highlighted in blue Then hold lt Crtl gt middle mouse button select node 7 D Node the node should be highlighted in red Finally select Add Lane Choice Rule to launch the Lane Choices Manager 84 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Edit Lane Choices link 11 8 Existing Rules Rule 4 link 11 8 gt 5 gt 7 Types all types v Lanes Vehicle Types Usage Percentage The Lane Choice Manager contains two submenus Lanes and Vehicle Types The Lanes submenu allows the user to define the proportion of vehicles that uses each lane Select each lane and apply the following proportions Lane 1 60 Lane 2 30 Lane 3 10 Lane 4 0 Within the Vehicle Types submenu the user has the ability to apply the lanes proportions to selective vehicle types This can be undertaken using the middle mouse button whilst holding Crtrl and selecting the relevant types In this example we will apply the signposting to all vehicle types this can be implemented by toggling Select All Quadstone Paramics V4 2 85 Quadstone Paramics V4 2 Modeller User Guide Edit Lane Choices link 11 8 r Existing Rules Rule 4 link 11 8 gt 5 gt 7 Types all types v Lanes Vehicle Types Vehicle Types v Se
98. lt files 10 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Maximise the Modeller Main window single click with the left mouse button over the minimised icon To increase the window size to full screen click the left mouse button on the small square icon at the top right of the Modeller Main window The Modeller Main window shows a basic road network consisting of 4 nodes 3 connecting links and 2 zones all within a simulation area The simulation area is marked as a dotted yellow rectangle inside the Simulation window An introduction to some of the Menu Bar choices and to a number of the Editor Toolbar icons follows 3 1 2 Dropdown Menus By clicking with the left mouse key on Menu Bar choices File Edit View Tools Simulation etc dropdown menus appear Each menu choice is described in detail in the Modeller Reference Manual and the following simple example will show the general selection procedure for these menus Preset an area by using the dropdown menu View gt gt Preset views gt gt Save View 0 The Paramics Input window appears showing a text box with the prompt Name for Preset View Click within the text block with the left mouse button so that the text is activated and type a description such as full network view and press OK Toolbars Dynamic Measurements Model Layers Context Layers Save Layer Selections Reset Layer Selections Save View gt Text GoToVie
99. matically calculates the percentage released in proportion to the length of the links associated with a zone and the number of lanes on each link Edit the release rates so that 90 of Zone 1 traffic is released eastbound towards Junction Intersection B Do this by opening the Link Attributes window as above and entering the new percentage in the Releases Rate 9o text box You should also click the check box to the left of the text box This fixes the percentage to the value entered If this toggle is not on Modeller reverts to the default calculation of percentage released as being proportional to the link length The other link associated to Zone 1 will automatically change to have a 10 release after the next Save and Refresh Note A link is only associated with a zone if the centre point of the link lies inside the zone boundary If this is not the case then no vehicles will be released onto the link from the zone and a warning error will be displayed in the Reporter window No suitable links for type VT in Zone OZ to Zone DZ Matrix M where VT is the vehicle type OZ is the origin zone DZ in the destination zone and M is the demand matrix By default vehicles will be randomly allocated a release link where more than one path to the destination exists To release vehicles onto the link in the origin zone that is part of the least cost path to the destination use the Configuration Options Release to Shortest Path check box
100. may be combined to form a sector and Zones 2 and 5 to form another section For the tutorial network this would give one sector to represent the east and another sector to represent the west Open the Editor Toolbar and select Edit Sector In the Simulation window select Zone 1 by clicking over the zone with the middle mouse button The option Create Sector appears By clicking with the left mouse button on Create Sector the Sector Editor window opens Select Sector Colour choose red then click OK then Apply within the Sector Editor window Now holding the ctrl key click with the middle mouse button over Zone 3 and Zone 7 then Apply then Close 48 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Repeat this process so that sector 2 is green and consists of Zones 2 and 5 Create sector 3 as white with only Zone 4 and sector 4 as blue with only Zone 6 then Save and Refresh these changes To display these sector totals select View gt gt Demands gt gt Options gt gt Sector Bandwidths appear in a similar fashion as the zone demand display with the exception that the sector colours are associated with each demand Again the bandwidths can be changed using Tools gt gt Display Settings gt gt Parameters gt gt Demand Band Width This sectoring and demand display option is a very useful way to check the major corridors for trip movements For example the tutorial network shows major east west movements with su
101. me Step gt Pause ms 9 IET Demand Y Factor 36 10 Emi OK Apply Cancel 22 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Select Tools gt gt Grid and then 100m if using UK mode or 100ft if in US mode Ml Grid x Grid Size Current Size m 25 0 Step Size m 25 0 1 m Grid Scale Factor Options M 3D Fill grid M Labels Zerobaseline V Fog Grid Colour E Grid Fill Colour 5 Apply Close Then click the edit link icon and select any link by clicking on the link with the middle mouse button Using Modify Link note the link attributes of category speed width and lanes For UK mode the speed is in miles per hour and the width is in metres For US mode the speed is miles per hour and the width is in feet To switch between the modes select Edit gt gt Configuration gt gt Base Parameters from the main menu bar and select US Units UK Units or Metric Units from the Units combo list The grid automatically changes between 100ft squares and 100m squares If you select the same link and Modify Link you see that the speed remains in miles per hour but the width has changed from metres to feet or visa versa 4 2 Model Area Template Detailed road layout plans can be read directly into Paramics and used as a template to build the model road network This removes the need to measure road geometry manually from plans or from site measurements Overlays may be used
102. n The total for all xxx values must add to give 100 for each period As with any Modeller file the layout of the values is not important but the layout below is used for clarity Note that periods can start or end at any 5 minute block Quadstone Paramics V4 2 95 Quadstone Paramics V4 2 Modeller User Guide Demand profile Period count 4 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX period 1 start 07 30 00 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX period 2 start 10 00 00 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX period 3 start 16 15 00 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX period 4 start 18 45 00 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
103. n and the distance The connection between two nodes is called a link The study area can be divided into sub areas known as zones which may be distinct geographical boundaries e g rivers railways canals etc or socio economic boundaries e g residential areas industrial areas shopping etc or boundaries specific to local model conditions e g to accommodate internal screenlines The travel demand is modelled as zone to zone movements and is represented by an origin destination matrix of trips 4 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Zones within the study area are referred to as internal zones while zones outside the study area are referred to as external zones The traffic assignment process allocates the journeys or trips to appropriate routes through the network Alternative routes are calculated depending on perception of link costs on network congestion and on network restrictions such as banned turns Additional fixed demands such as service bus data can also be coded directly onto the road network with pre defined specified routes To ensure that the model reflects as accurately as possible the existing road conditions a base year model is usually constructed The current road network and travel demand patterns are modelled and compared to observed traffic data Where the comparisons are within acceptable guideline criteria ref DMRB Vol 12 Traffic Appraisal in Urban Area
104. n is coded in the categories menu but can also be associated to individual links For individual links the Link Attribute window in the Editor Toolbar select Modify Link can be used be selecting the Flags menu One of the flag toggles is for Urban if set to off the link is assumed to be highway Exercise 26 Code the highway network shown in the skeleton diagram in Figure 11 and connect to the existing urban network use the network Training highway Jnt F Approximate Postion for Highway Nodes Figure 11 Skeleton Highway Network 74 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Firstly Edit gt gt Categories to include highway categories as follows Category Lanes Speed mph Width ft Median Width ft Type 30 0 12 0 urban minor 30 0 24 0 urban minor 30 0 36 0 urban minor 30 0 48 0 urban minor 40 0 12 0 urban minor 40 0 24 0 urban minor 40 0 36 0 urban minor 40 0 48 0 urban minor 30 0 12 0 urban major 30 0 24 0 urban major 30 0 36 0 urban major 30 0 48 0 urban major 40 0 12 0 urban major 40 0 24 0 urban major 40 0 36 0 urban major 40 0 48 0 urban major 70 0 12 0 highway 70 0 24 0 highway 70 0 36 0 highway 70 0 48 0 highway 70 0 25 1 highway 70 0 37 1 highway 70 0 49 1 highway 70 0 61 1 highway 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Add nodes along the highway to correspond to points where the curvature of
105. n the following example Assuming feedback at 2 minute intervals Then the delay for a particular turn DT for 0 to 2 minutes oto 2 times of turning vehicles DT 0 to 2 oto 2 Vehicles making the turn 2 to 4 times of turning vehicles DT 2 to 4 0 8 0 2 DT 0 to 2 2 to 4 vehicles making the turn X 4to6 times of turning vehicles DT 4 to 6 0 8 0 2 DT 2 to 4 4to 6 Vehicles making the turn Which can also be expressed as X 4to6 times of turning vehicles DT 4 to 6 0 8 t 0 16 DT 2 to 4 t 0 04 DT 0 to 2 X 4t 6 vehicles making the turn With feedback activated the averaged and damped turn delay costs are read into Modeller and used to calculate new routing tables By default feedback calculations only affect familiar drivers However by toggling on turning penalties visible to all in Edit Configuration Assignment the routes for unfamiliar drivers will also include turning delays The default smoothing factor of 0 5 can also be changed to 0 7 within Edit Configuration Assignment Note A feedback smoothing factor of 1 0 will only use the delays from the previous feedback period 110 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Exercise 40 Select Edit gt gt Configuration gt gt Assignment and set the feedback value 5 minutes Paramics will round the feedback value dow
106. n to produce a bounding box area This bounding area is used to define the grid area and the Plan window area Exercise 29 Check the bounding area by selecting the dropdown menu Tools gt gt Grid and the menu Tools gt gt Plan Adding a node that is outside the bounding box and connecting this to the network will prompt Modeller to save the new bounding box area 8 2 Network Restrictions Restrictions represent sections of the network that are inaccessible or barred to some vehicles based on the vehicles characteristics Paramics network restrictions can be coded for individual links Restrictions can relate to closures PT only movements vehicle type bans and vehicle characteristic bans such as weight height and width Quadstone Paramics V4 2 79 Quadstone Paramics V4 2 Modeller User Guide To code link and lane restrictions open the Editor Toolbar with Link selected Click with the middle mouse button over the link that is to have a restriction associated with it The selected lane will be highlighted in blue in the simulation window Then select Modify Link gt gt Lane Modifiers to view the restrictions dropdown menu This window shows the full range of possible lane restrictions specified as in the Restriction Manager At the top of this window there are small grey icon squares representing the number of lanes coded for the selected link i e 2 Squares appear if 2 lanes are coded 3 if 3 lanes are coded etc By default the i
107. n to the nearest minute i e feedback 462 is rounded to 420 seconds or 7 minutes Note Feedback values 1 to 59 are read as zero minutes therefore no feedback is calculated Before starting the simulation show the routes from link 11 10 to Zone 4 Select link 11 10 using the Right Mouse Button and Zone 4 also using Right Mouse Button and then show the routes View gt gt Routes gt gt Show Route From Link to Zone for all 4 routing tables The Status Report window should give the following information Link 11 10 gt Zone 4 table 1 cost 00 00 38 length 1353 ft Table 1 all types except 13 Familiar Link 11 10 gt Zone 4 table 2 cost 00 00 38 length 1353 ft Table 2 all types except 13 Unfamiliar Link 11 10 gt Zone 4 table 3 cost 00 00 38 length 1353 ft Table 3 types 13 Familiar Restrictions 1 Link 11 10 gt Zone 4 table 4 cost 00 00 38 length 1353 ft Table 4 types 13 Unfamiliar Restrictions 1 All tables have the same costs Start the simulation and run until after the second feedback calculation has been completed at simulation time 7 05 The Status Report window will display the message 07 05 00 Delay feedback recalculating routes Again show the routes for all tables from link 11 10 to Zone 4 The Status Report window will display the information shown below Link 11 10 gt Zone 4 table 1 cost 00 00 50 length 1353 ft Table 1 all
108. nes 1 and 2 show the coded characteristics of the selected vehicle including age The user can code the mean age of a vehicle type the actual age of each vehicle being randomly distributed around this mean value Age is used in the current gradient model to reflect that older HGV s have poorer climbing ability Biz Com and Lez are flags that are not used in the standard version of Modeller The first four lines of data are self explanatory while Appendix A describes the headings for the last four lines of vehicle parameters Exercise 19 Change the colour of category 21 in the Categories Manager to green Do this by opening the drop down menu Edit gt gt Categories and use the colour function to change the category colour The right hand mouse button can be used to initialise several short cuts to link node zone and vehicle functions It is recommended that these be used when more experience has been gained with Modeller Save and Refresh the network To display the new link colour use dropdown menu View Links Category This is a useful way to quickly see the category associated with specific links Exercise 20 Show the route or path of vehicles from Zone 1 to Zone 2 56 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Use the right mouse button to select outgoing link West to East from Zone 1 Next also use the right mouse button to select Zone 2 Then open View gt gt Routes menu and cl
109. ns the traffic simulation in batch mode without visualisation of the network through the GUI This dramatically increases the speed of simulation and is used to collect simulation results for the numerous test options and sensitivity tests required Paramics Analyser reads output from the simulation model and provides a GUI to compare post processing simulation results to observed data and to contrast and analyse different test results This User Guide concentrates on the Paramics Modeller tool and uses examples to describe how the software can be used to build traffic models and extract simulation results The Paramics software development is an ongoing process with additional functionality being created to meet customer needs or to match further developments in ITS or traffic planning processes If you have any comments on Modeller or on the contents of this User Guide please access Quadstone s Paramics web site at http www paramics online com 1 2 Basic Concepts and Terms Modeller requires two main inputs The first is the road network data the second is the travel demand data Road network data consists of geometric layout junction descriptions lane markings and turning movement information Junction or intersection descriptions are stored in the model as node data where each junction is allocated a node number or name The road network which connects between nodes describes the geometry of the road the lane specificatio
110. o Link 8 5 however they will be associated to Node 10 Select Lane Choices from the Editor Toolbar candidate link will be highlighted in cyan Select Link 8 5 this should highlight Node 8 A Node and Node 5 B Node To select the C Node for this signpost hold Crtl middle mouse button and select Node 10 C Node the node will be highlighted in blue then select Add Lane Choice Rule to launch the Lane Choice Manager Select the Lanes submenu choose Lane 1 and apply 50 to the lane then apply the same percentage to Lane 2 Finally select the Vehicle Types submenu and by holding Ctrl and middle mouse button select the following vehicle types e Types 10 11 12 13 14 15 Save and Refresh when all changes have been completed Quadstone Paramics V4 2 87 Quadstone Paramics V4 2 Modeller User Guide 9 Traffic Demand II 9 1 Zone Specification Open the network Training dembuild2 using File gt gt Open Reposition Zone 3 and Zone 1 to match the locations shown in Figure 14 overleaf Adjust the boundaries of the zones if required Also include a new zone Zone 8 at the north of the highway link refer to Figure 14 Save and Refresh the changes Open the Editor Toolbar window and select the File Editor icon from the Editor Toolbar Then click gt gt Demand gt gt demands check the demands file matches the following demand period 1 matrix count 3 divisor 1 0000 matrix 1 from 1 0143 113 45 16 83 2 250
111. o these practices or to similar national standards when building traffic models 1 4 How this Manual is Organised This manual is primarily designed as a tutorial guide to enable user to be come familiar with the core concepts of the Paramics Modeller software Advanced User guides covering areas such as the use of 3D Junction Analysis Cut and Paste Calibration Incidents Strategic Routing and VA Signals are also available as separate documents Quadstone Paramics V4 2 5 Quadstone Paramics V4 2 Modeller User Guide 1 4 1 Tutorial Modeller is highly interactive and therefore easier to learn by building example models to simulate traffic movements New users are recommended to read the tutorial section at their workstations and to complete the simple modelling examples The tutorial gives detailed instructions for the first five stages of the development cycle creating a new network building the network building demand matrices traffic assignment and collecting model results The final stages model calibration and validation can vary from model to model and may be controlled by published guidelines For example in the UK the Department of Transport recommends criteria for model building and validation The user is advised to follow these recommended criteria or use other national standards where appropriate The tutorial is set out in sections corresponding to the development cycle stag
112. onally print a warning message as follows This message warns that in the demands file a trip has been specified between zone 5 and zone 2 but as these two zones are associated with the same car park no vehicle is released onto the network WARNING No suitable links for type 1 in zone 5 to zone 2 matrix 1 The zones file and carpark file should be similar to the following examples This is checked using the File Editor Quadstone Paramics V4 2 91 Quadstone Paramics V4 2 Modeller User Guide carpark file Carpark Count 1 carpark 1 Town Centre CP 4 349 ft 887 ft 609 ft 887 ft 609 ft 1147 ft 349 ft 1147 ft max 349 ft 1147 ft min 609 ft 887 ft centroid 479 ft 1017 ft Capacity 300 Initial 150 zones file 92 Zone Count 8 zone 1 6 2291 ft 2059 ft 2484 ft 2059 ft 2381 ft 1684 ft 2280 ft 1482 ft 2045 ft 1549 ft 2168 ft 1852 ft max 2045 ft 1482 ft min 2484 ft 2059 ft centroid 2275 ft 1781 ft zone 2 4 Carparks 1 carpark 1 337 ft 788 ft 342 ft 916 ft 110 ft 936 ft 110 ft 774 ft max 110 ft 936 ft min 342 ft 774 ft centroid 225 ft 853 ft zone 3 4 2495 ft 1084 ft 3083 ft 1084 ft 3083 ft 1215 ft 2497 ft 1215 ft max 2495 ft 1215 ft min 3083 ft 1084 ft centroid 2790 ft 1149 ft zone 4 4 788 ft 1310 ft 920 ft 1307 ft 976 ft 1553 ft 829 ft 1570 ft max 788 ft 1570 ft min 976 ft 1307 ft centroi
113. onte en cele RR Ka 61 6 2 3 Link Cost Factors eem ms 62 6 3 Model Parameters secte ees a sete Ee pe TV V Ter Ue e Vie RA REOR 62 6 3 1 Generalised Cost Coefficients ccccceceec eee eee eens eee nennen 62 6 4 Assignment Methods isoo ieii a aE TEE ee EEE sea sea sean nn nn nnn 64 6 4 1 All or nothing ASSIGNMENL ccccceeeeee cece eee ee eee mmm menn nn 64 6 4 1 1 Major Minor LINKS esee RE AAA RE a 65 6 4 2 StOCHaSti Cis eed 66 6 4 3 Dynamic Feedback eesseeeeeseeeeennn nemen nennen nnn nnn 67 6 4 4 Combining Assignment Techniques cceceee este eee tees eee eeeeaee es 67 7 Collecting amp Analysing Model Results 1 cceeeeeeeeee eee eeeeeeeeeeeeeeeaeeees 68 71 Gathering Statistics nero eene exe e Caere NEET Fed RO C ne RR e 68 7 1 1 StatlstieS oie EE AM M MM M REM UE IU 72 8 Network Build II rei crx eet e ent n e i T o e e d eee 74 8 1 Urban Highway Network eesssssesseenennnm emen mene ne nnn nnns 74 8 1 1 Links with Mediansz coe e ate oe REY eorr e Ue te ne ees 75 8 1 2 GI TS e NKS EID E I II ITI 76 8 1 3 Ramips and SlipSs eoo ox ex male xh x tdeo e uawlees 76 8 1 4 Node Bounding BOX i na e e inr cedes 79 8 2 Network Restrictions cocer oe Dx s Eee ree Ds Ee aere Re EE E 79 8 2 1 T rk Restrictions cote mr i RI Rr ERR NR RITE EATEN NEP RENNES 82 9 3 nfrastructUle iu iocos erect ze IY EE EI ERE SR TER EX Y EN Te POR Pea 82 8 3
114. oooooooo o m o Ha o OOooooooooo wo Orm oo0oo0oo oo pi OO000N00000000 oOooooo OoOoooo o 200000 ROOOO A ogo 40 40 40 4 40 40 40 40 0 600 400 O0 o D o D o A o 40 40 40 oo ooooooo9 RB ooooo oooooooo o OooocooohBbbB5oooo oooooocooo AD oooooooBBooooo oat SCODDD0D0PSS00000 oOoooooo oOoooooo oOoooooo ooooooo ooooooo ooooooo 9 oooooooO 9 102 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Also code a matrix file to define how the profiles are related to the demands file In the Toolbar Editor select File Editor gt gt matrix The format is shown below Matrix count 1 Profile matrix 1 to 1 2 3 4 5 6 7 from 1 1 1 1 1 1 1 1 from 2 2 2 2 2 2 2 2 from 3 1 1 1 1 1 1 1 from 4 1 1 1 1 1 1 from 5 1 1 1 1 1 1 1 from 6 1 1 1 1 1 1 1 from 7 1 1 1 1 1 1 1 This matrix defines that trips from Zone 2 will use profile 2 while all other trips are related to profile 1 Coding the above files will produce the required surge in traffic from Zone 2 between 8 20 and 8 25 Check this by running the simulation With multiple profiles the user has the flexibility to code many different profiles together with a large number of ways to relate these to the demands files and Vehicles Manager It is therefore important that the user checks the coded combination to ensure these are as required There are several ways the model can be ch
115. opment can be assessed To collect loop detector data the user needs to code detectors as described on page 82 Once the loop detectors have been specified and saved model data can be observed interactively refer to the following section or can be output to ASCII files for analysis The following exercise provides an example for extracting loop data to ASCII files Exercise 48 Collect output statistics from loop detectors by selecting Edit gt gt Measurements gt gt Loops and choosing from the two lists Point Data and Link Data The format of the generated ASCII files is described in the Modeller Reference Manual These files can be imported into an analysis tool or spreadsheet for reporting purposes Statistics can be output to the format required for the Analyser Module To output data for Analyser set the time interval in the Measurements Manager gt gt Periodic gt gt Analyser Date A full description of functionality within Analyser is contained in the Analyser User Manual 118 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 11 1 2 Interactive Detector Data As described above the first step is to define the location and position of the loop detector Statistics can be viewed interactively using View gt gt Detectors The Detectors window is used to switch the value that is displayed for each loop One value is shown for each lane on the link where a loop is attached The choices are e Occupancy
116. or Panel is displayed and the mouse arrow is positioned over the navigator symbols a tooltip appears briefly only if Options gt gt Tooltips is toggled on on the screen These tooltips describe the operation of each of the symbols for example Pan Left Pan Up Zoom Down etc Clicking the left mouse button or single mouse button on a symbol will perform the respective operation within the Simulation window For example clicking on the symbol Pan Left will reposition the blue cross hair to the left of its present position The incremental step can be changed using the and symbols to increase or decrease the sensitivity The symbols Snap To Select Left and Select Right are used for editing the network and are described in the Modeller Editor section below 3 1 4 3 Keypad HotKeys A number of keypad characters have been defined as shortcuts HotKeys to navigation operations and for display options The navigation HotKeys are Tab View Point Height Up l View Point Height Down Right Left Up Down Arrow keys Focus Point R L F B Ctrl with Right Left Up Down Arrow keys Focus Point R L F B Fine If the mouse arrow is within the Simulation window area then pressing the Tab key will zoom up while pressing the lt gt key will zoom down The keypad arrow keys will pan the view in the Simulation window in each respective direction Exercise 1 Use any of the methods described above to centre the blue cross hair on Zone 1 an
117. or each vehicle type and change the number of routing options available on the network For this example network four tables are calculated familiar and unfamiliar for vehicles not affected by the restriction and familiar and unfamiliar for vehicles affected by the restriction By showing the routes for each table the Status Report window prints information similar to the following Link 1 2b gt Zone 2 table 1 cost 00 00 47 length 602 m Table 1 all types except 13 Familiar Link 1 2b gt Zone 2 table 2 cost 00 00 47 length 602 m Table 2 all types except 13 Unfamiliar Link 1 2b gt Zone 2 table 3 cost 00 00 49 length 595 m Table 3 types 13 Familiar Restrictions 1 Link 1 2b gt Zone 2 table 4 cost 00 00 49 length 595 m Table 4 types 13 Unfamiliar Restrictions 1 Quadstone Paramics V4 2 107 Quadstone Paramics V4 2 Modeller User Guide Coding more restrictions will increase the number of routing tables However Paramics will combine restricts so that the number of tables is kept to a minimum For example if lane 2 of the northbound link of the High Street link 17 4 is restricted to vehicle type 13 and 14 then 6 tables are produced Table 1 all types except 13 14 Familiar Table 2 all types except 13 14 Unfamiliar Table 3 types 13 Familiar Restrictions 1 2 Table 4 types 13 Unfamiliar Restrictions 1 2 Table 5 types 14 Familiar
118. or the Toolbar is conveniently located at the bottom of the window Within the Editor Toolbar there are four function groups namely File Options Network Demand and Modification The File Options group contains the save and refresh refresh only file editor edit options and editor help Save and Refresh the Save and Refresh function executes the M edits that have been made to the simulation network saves the changes and refreshes the screen display Note If any edits have been carried out but have not been saved then no network changes are applied Therefore File gt gt Reload has the effect of undoing any edits since the last Save and Refresh Refresh Only the Refresh function will not save the network changes but will refresh the screen while File Editor the Edit function enables edits to be carried out directly to 7 Paramics files This is useful for editing user specified files such as demands categories profiles etc EB Editor Options See Modeller Reference Manual for detailed EH information on Cut amp Paste Scope Periodic and Options menus Editor Help See Modeller Reference Manual for detailed information on this menu The edit functions are contained within the Network and Modification groups By clicking on the icon within these groups specific functions can be undertaken The following section concentrates on editing the main network components i e nodes links and zones 3 2 1 Adding a Link
119. ovided by the signposting hazard model used in Paramics giving the user more freedom to deal with complex junctions short links complex freeway on ramp off ramp combinations and special cases Exercise 32 Use the command File gt gt Open to activate network data selection browser and select Training lanechoices and select Open This sample network shows a standard highway junction exit where two oneway slip roads exist a short distance after the initial highway exit slip Ensure that signposting is highlighted select Model Layers gt gt Signposting The user will notice the signpost highlighting the Diverge at Node 5 only extends as far as Node 8 this is due to the architecture of the signposting function This means that vehicles using either Diverge A or Diverge B can only make their lane choice decisions on link 8 5 which in reality is not necessarily correct The application of lane choices will enable the signpost to be extended onto link 11 8 To achieve this we will require to apply two levels of lane choices Firstly Select Lane Choices from the Editor Toolbar Candidate links links that have hazards assigned to them will be highlighted in cyan The link we select now will be the link where vehicles will receive the necessary information to make a lane choice decision In this example we Select link 11 8 this should highlight node 11 A node and node 8 B Node To complete this first stage we need to select the
120. ow and click the left mouse button to place the blue cross hair at the centre of the area of interest point and click In addition to point and click the left mouse can be held down continuously as the mouse is dragged in the Simulation window The position of the view relative to the Simulation window changes By releasing the left mouse button the position is fixed at that point in the Simulation window drag and drop The drag and drop navigation is very sensitive and may therefore be difficult for users who are not familiar with this technique After some precise this is easily mastered but to start it is probably advisable to use the point and click technique By clicking the left and centre buttons simultaneously the Simulation window zooms out from the blue cross hair point referred to as zoom up The left and right buttons clicked as the same time will zoom in toward the b ue cross hair referred to as zoom down While zooming up and down the b ue cross hair position remains fixed unless the Tools Options Zoom and Pan is toggled on With this option selected the b ue cross hair position can be dragged i e panning around the Simulation window at the same time as the view is zoomed up or down 12 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 3 1 4 2 Mouse plus Navigator Panel The Navigator Panel can be toggled on or off using Tools gt gt Navigator If the Navigat
121. ow be set to start at 8 o clock Start the simulation and vehicles should now appear on the network Note The simulation start time can be set to any time for any day of the week code time in seconds Quadstone Paramics V4 2 55 Quadstone Paramics V4 2 Modeller User Guide 5 7 Additional Exercises To check vehicle characteristics click in the Simulation window with the right mouse button over a vehicle and select vehicle properties To ensure that right mouse buttons are available close the editor and check that Tools gt gt Option gt gt Right Mouse Menus is checked and that Tools gt gt Display Settings gt gt Graphics Settings is unchecked The Status Report window will show information similar to the following Typ Age Len m Hgt m Wgt tonne Wid m Top mph Acc mpss Dec mpss Biz Com Lez 2 lt 3 4 0 1 5 0 8 l 5 98 4 P NT 4 5 0 1 0 Agg Awa Trip Vehicle Time Stop Dist m Speed mph previous 5 2 1 6 1 6 42 OL OT 13 08 no235 0 28 0 20 0 10 Lane Lo Hi Nxt LSec NxO NNO exI Tab Pert Event ATT Tr Pa Prt Mat DemP FamP 1 dli 1 0 2 1 8 2 0 0 0 4 31 320 0 2 2 85 0 amb stp acc brk wL wR sL mL mR rSt nSt est oNo nwT nwV tbk 1tI hrd rrt dvt dsP fml dly 13 ib 1 1 1 The first six lines of data give information on the vehicle characteristics the behaviour lane allocation and routing of trips The last two lines are of more interest to programmers concerned with the internal workings of Modeller Li
122. peeds select View gt gt Links gt gt Category 114 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 10 5 Strategic Routes Strategic routes are used to prevent unrepresentative routing of vehicles where multiple routes are possible but unlikely to be taken For example strategic routes may be used to prevent a vehicle from leaving the main highway link at an interchange and then returning to the highway link on the other side of the interchange Exercise 46 Use the command File gt gt Open to activate network data selection browser and select Training Strategic and select Open The network is a combination of urban and highway road infrastructure The interchange of interest in this exercise is located in the centre of the highway Mark the vehicles routing between Zone 2 and Zone 4 and vice versa using Edit gt gt Marking When the simulation is run the user will observe a minority of vehicles between the two zones routing via the on and off ramps This phenomenon occurs as a direct result of the assignment criteria applied Vehicles see this as an acceptable route based on this criteria where in reality it is unlikely to happen Application of strategic routes removes the local effects of perturbation and dynamic feedback effectively enforcing AON assignment to vehicles between the start and end point of a Strategic Route and therefore solving the problem Strategic routes are applied in such a manner th
123. played when the Modeller Main window is minimised When the Add option is selected an Annotation window appears Three modes of annotation exist Text Polygon Line and Circle Using the Text mode text can be typed in the box at the bottom of the Annotation window By clicking OK the text is added to the Simulation window at the position shown by the x y z co ordinates The View button is used to show the text and the position of the text before applying the change By zooming in and out in the Simulation window the annotation will appear and disappear The limits at which each part of the annotation appears and disappears is set using the Z Min and Z Max values Annotation Text x Annotation Mode Text d m Coordinates r PolygoniLine Coordinates X m A1 Y m 495 0 Z my bo r Size Colour Zoom Properties Size my Z Min m 400 ZMax m 8999 0 Colour Text Text Type m Association E NEAN General Free 1 i View OK Cancel The colour and type of text can also be changed by selecting the appropriate option in the Annotation window Note There are three text types namely General City and Road The City and Road types preset the size of the text to 100 point and 10 point respectively With General text the user can set the size of the text as required The text annotation can also be associated to specific nodes links or zones or can be Free i e
124. r 80 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 The height weight and width of any restriction may be specified and each may be a maximum or a minimum figure as controlled by the Restrictions Manager The Restrictions Manager can be launched by clicking New Ctrl R or Edit Restrictions Within the Restrictions Manager it is possible to copy create and delete restrictions See Reference Manual page 36 When creating a new restriction the restriction details within the Physical menu are highlighted allowing the user to edit restriction attributes i e width height etc The next restriction setting within the Restrictions Manager is the Vehicle Types tab that specifies which vehicle types are to be barred as part of the restriction The selection policy combo box contains the options Barred or Allowed The Except setting is a convenience function which means that all vehicles EXCEPT those listed in the text box are barred from using this lane Again a blank box indicates no restriction Vehicles can be selected to be Barred or Except within a restriction by using the left mouse button and the shift key At the top of the section to help establish complex restrictions there is a Resulting Vehicle List This list displays the vehicle types actually barred or allowed from using to use the lane or allowed down the lane as selected by the combo box selection to the right of the Resulting Vehicl
125. ramics V4 2 105 Quadstone Paramics V4 2 Modeller User Guide 10 1 1Modifying the Release of Traffic By default Paramics produces a random probability of vehicle release as described above This method automatically has a built in fluctuation which may be seen to be representative of daily or hourly changes in traffic flow This is therefore the recommended procedure for modelling the release of vehicles It is also advisable to test the sensitivity of the model results using a range of seed values In some circumstances these variations in release may be deemed unacceptable therefore two modifications have been incorporated in Modeller to limit the potential departure from input O D values The modifications are activated by selecting Edit gt gt Configuration gt gt Assignment and using the Matrix Tuning Level combo box to select either Level 1 or Level 2 LI Configuration Base Parameters Core Assignment options Breakpoints Feedback Period 00 00 00 Closest Origin Carpark Feedback ime v Closest Destination Carpark UM Turning Penalties Visble To All Fesi Bobs 5 285 Category Cost Factors Visable Factor To All Generalised Cost Coefficients 3 IV Perturbation Time a 41 000 Distance b 0 000 9 p Matrix Tuning Tolls c 0 000 Level None Level 1 Level 2 OK Apply Cancel Level 1 modifies the probability of release to give a value closer to the stated value but still
126. random In detail it factors the probability depending on the previous releases Level 2 fixes the release rate to be exactly equal to the specified rate This level of fixing can lead to a sudden rush of vehicles near the end of the period or alternatively a total lack of vehicles near the end of the period Note It is only recommended that Matrix Tuning Level 0 is used in simulating networks 106 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Typical model results with and without matrix tuning are shown below Seed Value Vehicles Released 5 8 15 to 8 20 8 20 to 8 25 8 25 to 8 30 Total No Tuning Tuning Level 1 Tuning Level 2 10 2 Features Affecting Traffic Routing 10 2 1 Restrictions The section Network Restrictions on page 79 describes how restrictions for links lanes and turns are added to the network coding The network contained in Training demrest2 has a restriction coded on the southbound link of High Street Open this network and View gt gt Routes together with selecting the link and zones using the Right Mouse Button to show the calculated routes for each routing table Select a link from Zone 3 link 1 2b and show the routes from this link to Zone 2 You may recall that networks with no restrictions only produce two routing tables one for familiar drivers the other for unfamiliar drivers Coding restrictions will by their very definition affect the routes calculated f
127. rence Below the Reporter from left to right is the Progress Bar Simulation Clock Real Time display Vehicle display Mode display and the Dimensional Mode display Around the edge of the Simulation window there is a dotted line that defines the area for visualising simulated traffic this is the Viewport View gt gt Set Viewport To open a new network select File gt gt New from the Menu Bar The file browser window allows the user to look at existing directories and select the required one and selecting Open Ctri N Ctrl O Vou iet 1 CuProgram Files Par data building shapes 2 C Program Files Paramicsv4 data newe 3 C Program Files Par ata V4TRAINING urban Exit For example to create a new network called Urban select File New To name this network simply select File gt gt Save as then select the directory location in this instance create a folder called Training and type the name the network Urban in the File Name field and select Save This opens a Modeller Main window for a new network called urban in the directory called Training In the urban sub directory nine default files will be created namely annotation categories demands links linktypes nodes options vehicles and zones To view these files minimise the Modeller Main window click with Jeft mouse button on the appropriate icon at top right of the window then use a text editor such as Notepad to open any of the eight defau
128. rips Quadstone Paramics V4 2 47 Quadstone Paramics V4 2 Modeller User Guide Such changes can only be done by editing the demands file directly The example in Exercise 22 explains how to code more than one demand matrix 5 2 2 Display Demands The user can view the levels of demand by selecting View gt gt Demands The Demand Display window will appear Demand Display LX Options From Matrix gt E E n In the Demand Display window click with the left mouse button on a from zone a to zone and a matrix number The demand level will appear as a white bandwidth with an arrow head and associated number Any combination of from and to zones or matrices can be selected by clicking in the Demand Display window with the left mouse together with the shift key or lt ctrl gt key The total demand selected is displayed in the Reporter window Tools gt gt Reporter To change the display bandwidth select Tools gt gt Display Settings Parameters Demand Band Width and drag the slider bar This display can be refer to as desire lines used to identify the level of desire to travel from origin to destination 5 2 3 Sector Editor and Displaying Sector Demands With traffic models that contain many zones it is sometimes necessary to group zones into sectors so that a clearer understanding of major traffic movements can be extracted For example Zones 1 3 and 7
129. s is to middle click on the circumference point which does not match the link node positions Ensure that the edit display reads Edit Mode Movable Centre and then hold the lt shift gt key and click with the middle mouse button to change the position of the circumference point Save and Refresh to save the changes This method fixes the position of the two node circumference points and adjusts the centre and radius of the circle Alternatively the user can select either the circle radius or individual circumference points and switch between movable or fixed radius to adjust the curvature The user should practise different techniques to find their preferred method After completing the coding of curved links save the network and then open a new network called Training ramps Use this network to complete the coding for the following section on Ramps and Slips 8 1 3 Ramps and Slips Links connecting to highways are described as slips or ramps In Paramics a slip link is defined as a link where traffic leaves a highway or off ramp while a ramp is where traffic enters the highway For slip lanes or on ramps code a node on the highway link where the roads diverge and then code a one way link from that node to represent the slip link To code the slip lane the user selects the highway link at the point before the roads diverge in the Editor Toolbar use the Link function 76 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramic
130. s the model in considered to be calibrated and validated The process of calibration allows for the adjustment of parameters used within the model fine tuning the model output to give acceptable matches to observed data However the results must be shown to be robust and consistent and any changes to default parameters must be justifiable Model validation consists of independent checks of the calibrated model Observed independent data not used for model calibration is compared to model output and verified against guideline criteria 1 3 Modeller Development Cycle The Modeller development cycle consists of the following seven steps 1 Creating a new Paramics network and embedding an overlay file 2 Constructing a road network by adding nodes links and zones and coding detailed lane and junction description 3 Constructing demand matrices from origin destination data and including fixed demand data such as PT Routes 4 Assigning traffic using an appropriate assignment technique 5 Collecting and analysing model results 6 Calibrating base conditions by comparing model results to observed data 7 Validating the calibrated base model against independent data All stages of the network construction and simulation process require checking and validation Guidelines for good practice are published by the Department of Transport UK in DMRB Vol 12 Traffic Appraisal in Urban Areas Paramics users are recommended to adhere t
131. s V4 2 Then Modify Link gt gt Link Modifiers and in the Slip Lane box type the required length for the slip lane Coding a slip provides an extra lane to the nearside of the road for the specified slip lane length To code ramps the user should firstly code a highway link and a one way link leading to the highway link These two links should not be connected Next in the Editor Toolbar choose the Edit Ramps function The HUD will display either Edit Mode Ramp Node or Edit Mode Ramp Link The Change ramp mode option toggles between these two options Edit Mode Ramp Link select the required highway link then toggle Change ramp mode i e switch to Edit Mode Ramp Node and select the node at the end of the ramp link This node should now display the mode in orange and the highway link in green Next select Add Ramp so the Paramics Input window appears The length of the ramp can then be typed in the appropriate box Ramp attributes vehicle behaviour for merging and mainline traffic can be modified to represent local conditions associated with ramp behaviour Alternatively ramps can be coded if the network has been built so that the ramp link connects to a node on the highway link In this case the user selects the ramp link using the Edit Mode Ramp Link function and then Add Ramp Paramics automatically adds a disconnected ramp node so that the ramp coding becomes the same as the default specification for ramps If the approac
132. s full green time during all phases and code the appropriate turn priorities for major minor medium and barred This method has been used to code part time traffic signal junctions intersections which as the name suggests operate as signals at specific times during the day 9 3 5 Periodic Link Changes In addition to signal timing changes physical restrictions such as street parking PT Lanes etc may differ at various times during the day Modeller enables the user to specify time dependent changes to PT Lanes lane restrictions speed limits cost factors release rates stay in lane forced merge crossing end stop time and end speed Exercise 37 Using the Editor Toolbar toggle the Editor Options gt gt Periodic gt gt Links parameter on Code lane 1 on the southbound link of High Street with a restriction for LGV during time period 1 Again in the Editor Toolbar select Link gt gt Modify Link gt gt Lane Modifiers Launch the Restrictions Manager by clicking New and create a restriction that barrs LGV s Check that the simulation clock shows that period 1 is activated After making the changes to the link in the Network Editor Save and Refresh the network The updates will be saved to the file links 1 To show the restrictions toggle View gt gt Model Layers gt gt Restrictions on Advance the simulation clock time forward to 8 30 time period 2 The message in the report window should be as follows Swi
133. se 1 Then in the Cycle Time section select Cycle Vary toggle the Amber option off and choose Actual Then use the arrows beside Red to reduce the red time to zero and on the Green time to set this to 20 seconds Repeat the process to code phase 2 and phase 3 Save and Refresh when all changes have been completed The turn lane specification defines the lanes that different streams of traffic can use on a link entering a junction intersection For example if there is a junction intersection called Node B and you want to code the lanes for a turn A to B to C then the turning lane definition should show the lanes on link A B which the turn A to B to C can use Quadstone Paramics V4 2 37 Quadstone Paramics V4 2 Modeller User Guide If link A B has three lanes and only lane 2 is used for the turn A to B to C then the Turn text box should read 2 2 However if all lanes were permitted for the turn then the coding should read 1 3 4 4 3 Roundabout Junction Intersection Select the roundabout identified in Figure 3 as Junction Intersection C in the Editor Toolbar use Node icon and click with the middle mouse button on Junction Intersection E in the Simulation window Refer to Figure 6 for link category details In the Editor Toolbar window select Modify Node not Modify Junction the Node Attribute Modifier window appears l Node Attributes Xx Height m boo m Node Type 34 mM New Roundabou
134. sts are perturbed for each individual vehicle on a random basis This means that vehicles with exactly the same characteristics travelling between the same origin and destination can have different routes The variation in the routes is controlled by the perturbation factor The algorithm for perturbation may be set to Square Root Algorithm The differences between the percentage and the square root algorithms are explained in the Modeller Reference Manual 66 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 6 4 3 Dynamic Feedback Open the network Training assign1DF and select Edit Configuration and disable perturbation and set the feedback value to 2 minutes as follows Start Time Duration Seed Feedback Perturbation Period 07 00 00 02 00 00 1 0 00 02 00 Toggled Off Mark vehicles to Zone 3 and start the simulation During the first 2 minutes of simulation no marked vehicles use Kelly Lane However as the simulation progresses a number of marked vehicles start to route via Kelly Lane Note The Report window gives information on the delay feedback calculations such as 08 40 00 Delay feedback recalculating routes Select a few vehicles that have re routed along Kelly Lane All re routed vehicles are familiar Within any given 2 minute time slice these vehicles will all take the same route for each O D pair Show the routes for familiar and unfamiliar drivers to check how these may change
135. t Normal Diameter m 20 0 Roundabout Category 2 Ghost Island Create Zone Connector Non Blocking Compliance 1 gt Apply Close On the right hand side of this window there is a section headed New Roundabout Click with the left mouse button in the Diameter box and change to 15 0 m 49 2 ft Similarly change the Category to 22 and click on the Create function A roundabout will appear on the screen with the single node expanded to four roundabout nodes RB with four roundabout sections The centre of the roundabout probably does not match exactly to the overlay To change the centre of the roundabout choose the Edit Curves function from the Editor Toolbar the circle representing the centre of the roundabout is now dotted Edit Mode in the top left hand corner of the Paramics window tells you the current curve editing mode Select the square at the centre of the circle using the middle mouse button and change the curve editing mode until this reads Edit Mode Fixed Radius by selecting the change curve mode function Holding the lt shift gt key and clicking with the middle mouse button will reposition the centre of the roundabout Save and Refresh the changes The roundabout section links are all coded as category 22 Position the roundabout nodes to match the overlay marked as RB positions in Figure 6 using the Node function from the Editor Toolbar Edit the turning movements to be similar to
136. t gt Major Minor will show High Street links as blue i e minor Toolbars Dynamic Measurements wd ee a Model Layers Context Layers Save Layer Selections Reset Layer Selections Preset views Text Links Auditing Detectors PT Lines Ctrl B Category Demands Ctrl D Highway Urban Routes l Ctri U Link Speed Show Periods Vehi F Number Of Lanes ehicle Dynamics i Set Viewport Link Type Link Cost Factor Link Headway Factor Repeating the procedure described above show the routes for familiar and unfamiliar drivers For some routes e g from Zone 2 to Zone 3 the familiar and unfamiliar routes will differ Again mark vehicles to Zone 3 and start the simulation Some vehicles to Zone 3 should now be using Kelly Lane Pause the simulation and using the right mouse button and the Trace Vehicle option to mark a vehicle that is using Kelly Lane In the Status Report window the traced vehicle can be identified as unfamiliar The reporter will show either Tab 1 or Tab 2 where Tab 1 is equivalent to routing table 1 familiar and Tab 2 is routing table 2 unfamiliar All unfamiliar Quadstone Paramics V4 2 65 Quadstone Paramics V4 2 Modeller User Guide drivers to Zone 3 from Zone 2 and Zone 6 route via major links including Kelly Lane Using major minor classification of links adds a level of sophistication to all or nothing assignments by allowing the ro
137. t Factors 61 Configuration 22 55 60 63 66 105 D Demand Matrices 44 45 47 53 58 88 95 Detectors 68 82 118 119 Devices 18 Display Settings 15 Dropdown Menus 11 Dynamic Assignment 64 67 E Edit Curves 38 76 Editor Help 16 Editor Options 16 Editor Toolbar 10 84 88 100 109 F File Editor 16 Flags 18 G generalised cost coefficients 61 62 116 Grid 23 K Kerbs and Stop Lines 40 46 75 78 L Lane Choices 84 Link Attributes 18 Link Cost Factors 62 Link Modifiers 18 120 Major Minor 65 Modeller window 8 Modeller Window 9 Modify Junction 17 32 36 38 99 Mouse Mouse Navigation 12 Moving objects 17 19 25 N Navigation 12 new network 6 10 24 41 76 Node Editing 17 O Output Statistics 68 72 Overlays bmp dxf and tga 23 24 25 P Preset views 11 Refresh Only 16 Reporter Window 12 Restrictions 79 82 100 107 Roundabout 29 38 Save and Refresh 16 Sign Posting 83 84 Start Simulation 20 Stochastic 64 66 67 Strategic Routes 115 Units 23 Vertices 19 Visibility 39 Zones 19 44 48 90 Quadstone Paramics V4 2 Quadstone Paramics V4 0 Modeller User Guide Quadstone Paramics V4 P De QUADSTONE 121
138. tab Ensuring that the Hide file extensions for known file types is toggled off Quadstone Paramics V4 2 21 Quadstone Paramics V4 2 Modeller User Guide 4 Network Build I Prior to this stage it is essential that a modelling overview has been completed and decisions have been taken regarding modelling objectives and requirements This is generally known as the scope of the study or the scoping phase This tutorial assumes that an overview or scope has been completed and the model area model time periods and data requirements have all been identified 4 1 Units Paramics has three options for displaying speed and distance units for more details see the Configuration Manager gt gt Base Parameters gt gt Units in the Modeller Reference Manual page 22 Note All internal calculations are carried out in metric units therefore minimal conversion and rounding errors can be expected if imperial units are applied The user can define the default units used for each network by selecting File gt gt Configuration gt gt Base parameters In addition to specifying the units the user can also select whether networks are right hand drive or left hand drive Fl Configuration x Base Parameters core Assignment Options Breakpoints Start Time 00 00 00 Units UK Units vj Duration 01 00 00 Orientation Left Hand Drive v RNG type Marsaglia v Seed o E 2 Time Steps per fe _ Ff j second 0 Inter Ti
139. tamp in the simulation either in mph US and UK mode or in kph metric mode o VKT VMT total number of Vehiclekilometers Vehiclemiles travelled in the network since the start of the simulation o VHT total number of Vehiclehours travelled in the network since the start of the simulation 72 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 e bus specific values relating to ALL PT vehicles released since the simulation began o stops total cumulative number of stops made by PT vehicles at PT Stops o time total cumulative time seconds spent stopped at PT Stops o on total cumulative number of passengers uplifted o Off total cumulative number of passengers set down The following file gives an example output from the gather economic info option d rAcosteRSCLAELARCODOILLERCDOERLEBLECDDOTLOLSODOILLP LIODOEERRLCCOLDLASCne Se Sees Sean e Ss See eee ee see te ee aaa Se HF current all vehicles bus specific time nv mean veh ave travel tot travel total veh total mean veh VMT VHT E speed mph time s time s dist ft nv speed mph stops time on off ditty PED C LL EP a C E 08 01 00 29 11 1 Zra 983 6151 36 22 5 6 15 0 27 BUS 0 0 0 0 0 0 0 0 0 00 0 00 0 0 0 0 ALL 29 13 27 3 983 6151 36 224 5 6 15 0 27 08 02 00 42 9 8 42 4 3178 15042 15 17 0 15 04 0 88 BUS 0 0 0 0 0 0 0 0 0 00 0 00 0 0 0 0 ALL 42 9 8 42 4 3178 15042 75 17 0 15 04 0 88 08 03 00 51
140. tching from period 1 to period 2 Then in the Editor Toolbar select the same southbound link of High Street to show the restriction for LGV s does not exist for period 2 Select Save and Refresh This update will be saved to the file links 2 By scrolling between period 1 and period 2 you will see the restrictions appearing and disappear if View gt gt Model Layers gt gt Restrictions is toggled on 100 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 In a similar way the link definitions for speed limits cost factors etc can also be changed between time periods However it is not possible to add extra links or to change physical parameters like the width or number of lanes on a link 9 4 Multiple Profiles An enhanced feature of demand loading in Paramics is the ability to specify different profiles for each origin destination zone For example if a new superstore or mall development is assumed to produce surges in traffic flows during the modelled period then individual profiles can be defined to reflect these surges in flow Exercise 38 In the tutorial network change the release of traffic from Zone 2 so that all vehicles are loaded onto the network in the 5 minute period between 8 20 and 8 25 The first step is to code a second profile in the profile file with 100 of the traffic released in time period 1 as follows Demand Profile Profile Count 2 Profile 1 Period Count 4 Di
141. te ID Service Name Fleet Size and Vehicle Type Select the Schedule menu Within this menu you have 4 available functions New Edit Delete and Frequency Selecting New will launch the New Departure Time window that allows the user to specify a Start Time and an Occupancy at the start of the route Choose at Start Time of 08 00 and an Occupancy of 10 then click OK Within Schedule the Frequency function allows the user to modify individual bus route timetables Selecting Frequency opens the Departure Frequency window which allows the user to alter Start Time End Time Release Gap and Occupancy Select a Start Time of 08 00 End Time of 09 00 Release Gap of 2 an Occupancy of 10 and select OK The Timetable is updated based on this information Schedules can be edited and deleted using the appropriate functions 54 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Although the route has been defined it is now required to specify the PT Stops associated to each bus route To add modify and delete PT Stops select the Edit PT Stops icon and in the Simulation window select the link where the PT Stops are required by positioning the blue cross hair beside the required link and clicking the Add PT Stop icon Note As a shortcut the Editor Options icon can be used to check the Options Auto PT Stop Association box This will automatically associate the start and end PT stops with the routes Once all the PT data has
142. th the link immediately upstream of the hazard node By default hazards on urban links are set at 820 ft 250m from the node while on highway links the default distance is 2461 ft 750m The assumption is that sign posting on highway links will provide the drivers with information further from the hazard so that they have enough time to react To specify a signposting distance for a particular hazard open the Editor Toolbar and select the Link options Open the Link Attributes window using the Modify Link function Then Link Modifiers and in the box associated with signposting type the required value Apply then OK and Save and Refresh The sign posting specification has two values The first is the distance entered in the Signposting entry box of the signpost from the end of the hazard node The second value Sign ranges is the distance from the signposting distance that vehicles will gradually become aware of the upcoming hazard in accordance with the vehicles individual awareness parameter Note Signposts need not represent physical location of a signpost the term is used to identify to the user vehicle behaviour that is normally associated with lane choice Quadstone Paramics V4 2 83 Quadstone Paramics V4 2 Modeller User Guide 8 3 3 Lane Choices This feature allows the user to define link lane specific lane usages rules on approach to a remote intersection This allows the user to override the default lane use logic pr
143. the road network will re route if information on the present state of traffic conditions is available to them This is achieved by taking real time information from the Paramics model and using this data to update the routing calculations The following sections give examples of coding applying and analysing these assignment procedures The example networks used to demonstrate the assignment methods are Training assign1AON Training assign1SA and Training assign1DF All these networks are similar to the tutorial network developed in previous sections of this User Guide 6 4 1 All or nothing Assignment Open the Modeller Main window Then select the command File Open to activate the Network Data Selection browser Select the network Training assign1AON and press OK Change the Configuration Manager for this network is as follows Start Time Duration Seed Feedback Perturbation Period 08 00 00 01 00 00 1 0 00 00 00 Toggled Off Using the left mouse button click on the View Selections menu and tear off the dropdown box Toggle the Link button to on and select a link coming from Zone 1 Next toggle the Zone button and in the Modeller Simulation window click with the middle mouse button in the middle of Zone 2 Open the View Routes menu and toggle the Show Route From Link to Zone function Identify the barred turns using the View Model Layers Barred Turns toggle Repeat this process to show all routes between eac
144. ting mode of operation The user may also modify a number of other attributes associated with the selected Zone Area A Zone Area is selected using the middle mouse button However there are two selection sub modes single point and all points A single point on the boundary can be selected by clicking near to that point All the points defining the Zone Area can be selected by clicking near to the centroid of the Zone Area where a label describing the Zone Area is displayed Exercise 15 Using the methods described on page 19 add zones and change zone boundaries to match the skeleton zone plan shown in Figure 10 44 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Zone 004 Zone 007 Zone 002 Zone 006 Figure 10 Skeleton Urban Network with Zones Two links should lie inside Zone 1 In the Editor Toolbar select Edit Links and highlight the link which connects from Zone 1 to Junction Intersection B Modify Link and in the Link Attributes window select the Link Modifiers tab The Vehicle Releases box will show the percentage of trips released from Zone 1 onto the link Now select the link northbound from Zone 1 connecting to Junction Intersection C and note the percentage of trips released onto the link The total percentage of trips from Zone 1 will equal 10096 Modeller auto
145. uadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 10 4 Additional Exercises A list of further tutorial exercises follows Exercise 41 At the traffic signal junction intersection of Park Lane Kelly Lane High Street code the left turn lanes from the south and from the north as stacking lanes Using the Editor Toolbar select the Stop Line editor and select the stop line for the left turn Select the Make Stacking icon and reposition the stack stop line nearer the centre of the junction intersection after selecting the stopline hold the lt shift gt key and click with the middle mouse button to move the selected stopline to a new position Repeat this process with the other left turn lane and Save and Refresh the changes The stop lines are now shown with a little blue arrow to indicate the associated stop line as stacking Restart the simulation The left turning traffic should now queue at the new stacking position during the green phase for the associated turn Exercise 42 Trace and follow a selected vehicle through the network using the Tools gt gt Dashboard Tracer function Select Tools gt gt Dashboard Tracer to open the Dashboard View window and start the simulation In the Simulation window select a vehicle by clicking over the vehicle with the Right mouse button and selecting Follow Vehicle option The View and Tracers options within the Dashboard View window can then be used to select Follow
146. ute for a proportion of vehicles and or different vehicle types or trip purposes to be calculated separately All or nothing assignment procedures are unlikely to be appropriate in urban areas where congestion conditions are expected to occur and alternative route choice is available However viewing the all or nothing routes is a useful way to check possible network coding errors such as omitting banned turns 6 4 2 Stochastic Use the command File gt gt Open to activate the Network Data Selection browser and select the network Training assigniSA and press OK Select Edit gt gt Configuration and edit the following components to enable perturbation costs Start Time Duration Feedback Perturbation Perturbation Period Algorithm 07 00 00 02 00 00 00 00 00 ToggledOn percentage Check that the perturbation value set in the Vehicles Manager is 10 using Edit gt gt Vehicles Save file and reload any changes Use the View gt gt Routes function to show a sample of origin destination routes but this time drag the Perturbation Factor for Display to 10 If the Percentage Algorithm toggle is on then the value 10 represents a 10 perturbation of costs As before mark vehicles to Zone 3 and start the simulation Some of the marked vehicles use Kelly Lane By selecting a sample of the Kelly Lane marked vehicles the information in the Status Report window should show that these vehicles can be either familiar or unfamiliar Link co
147. vel tot travel total veh total mean veh VMT VHT T4 speed mph time s time s dist ft nv Speed mph dit et ee See eee ee re oe ee ee ee ee Se re ee ae Sas Sera Se e time each line has a timestamp The file will be refreshed every minute of simulation regardless of any other settings e current relating to vehicles that are being simulated at the instant of the timestamp o nv the current number of vehicles o mean speed the average speed in either miles h US and UK mode or in km h metric mode e all vehicles relating to all vehicles all trips released since the simulation began including those that have not yet reached their destination the current vehicles o ave travel time s mean travel time seconds per vehicle in the simulation up to the current timestamp Here travel time means the time taken to get from origin to destination or from origin to where the vehicle is at the present timestamp zero time would require infinite speed o tot travel time s the cumulative total travel time for all vehicles in the network in seconds o total veh dist m ft total cumulative distance travelled up to the current timestamp in the simulation either in vehiclemetres UK and metric mode or in vehiclefeet US mode o total nv the total cumulative number of vehicles in the simulation up to the current timestamp o mean veh speed kph mph the average speed for all vehicles up to the current times
148. vely along routes as problems occur in simulation if the same stopline type is placed in this manner It is also possible to create a stacking stop line for the outside lane on a link at traffic signals This is used to simulate traffic turning left that waits in the middle of a junction intersection before turning In effect this stream of traffic has two stop lines one when the vehicles have a red phase the other during the green phase where they wait for a gap in the opposing traffic movements To code a stacking stop line open the Editor Toolbar and select Edit Stop Line icon and select the stop line associated with an outside lane One of the icons within the Editor Toolbar will show Make Stacking By selecting Make Stacking the user can position the stacking stop line close to the centre of the junction intersection Note The icon changes to read Make Normal After a Save and Refresh select View gt gt Model Layers gt gt Stoplines to show the locus point positions Note that stacking stop lines are identified by a blue arrow head 40 Quadstone Paramics V4 2 Modeller User Guide Quadstone Paramics V4 2 Exercise 13 Move kerbs at Junction Intersection B to match as closely as possible the road layout shown in the overlay Although some repositioning of these control points can be done before starting a simulation the detailed operation of each junction intersection will only become clear when vehicles are loaded onto th
149. vious selected command 5 Folder names are shown as italic bold Training urban 6 Click always means to use the mouse buttons All mouse operations in this User Guide assume that a 3 button mouse is installed Quadstone Paramics V4 2 7 Quadstone Paramics V4 2 Modeller User Guide 2 Tutorial 2 1 Introduction to the Tutorial The tutorial section of this document includes the following chapters Introduction to Modeller Network Build I Traffic Demand I Traffic Assignment I Collecting and Analysing Model Results I Network Build II Traffic Demand II Traffic Assignment II Collecting and Analysing Model Results II It is intended that the user reads the tutorial at their workstation and follows the step by step instructions to build simple models The model build procedure is divided into two sections The first section introduces basic model build techniques while the second section introduces additional techniques together with some enhancements to the basic features In the process you will be introduced to all the major features of Paramics Modeller When the tutorial is completed the Modeller window looks like Figure 1 l Paramics Modeller 4 0 Beta 1 PUBLIC with Programmer 4 0 Beta 1 PUBLIC Training Highway C PROGRA 1 PARAMI 1 BETES File Edit View Tools Simulation Help E Bou TH E EP iP sp Ay nearest Node zone 11 m t gites sz o gt B 5 96 2 zp P H wa m
150. visor 10 Interval 5 8 15 to 8 30 8 30 to 9 20 14 05 to 16 10 and 16 20 to 16 30 period 1 start 08 15 00 200 300 500 period 2 start 08 30 00 80 80 80 120 120 110 110 110 100 90 period 3 start 14 05 00 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 period 4 start 16 20 00 600 400 Profile 2 08 15 00 01000 0 08 30 00 80 80 80 120 120 110 110 110 100 90 14 05 00 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 16 20 00 600 400 Quadstone Paramics V4 2 101 Quadstone Paramics V4 2 Modeller User Guide Alternatively multiple profiles may be coded as Demand Profile Profile Count 2 Profile 1 Period Count 4 Divisor 10 Interval 5 8 15 to 8 30 8 30 to 9 20 14 05 to 16 10 and 16 20 to 16 30 period 1 start 08 15 00 200 300 500 period 2 start 08 30 00 80 80 80 120 120 110 110 110 100 90 period 3 start 14 05 00 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 period 4 start 16 20 00 600 400 Profile 2 hour 00 hour 01 hour 02 hour 03 hour 04 hour 05 hour 06 hour 07 hour 08 hour 09 hour 10 hour 11 hour 12 hour 13 hour 14 hour 15 hour 16 hour 17 hour 18 hour 19 hour 20 hour 21 hour 22 hour 23 OcOOOoOOcoocoococococo Soooooooo OoOOO0O0000 OcOoOoocoocoococoo OcOOoOOoOocoococococo OcOOoOOoocoocococo m 0 080 80 8 pa oooo0oo0oo0oo0o00 oooooN
151. w Links Auditing gt Detectors v Tw v PT Lines Ctr B Demands Ctrl D Routes Ctr Show Periods Vehicle Dynamics Set viewport This will return the Main window to the predefined area each time the O zero key is pressed or when View gt gt Preset views gt gt Go To View full network view is selected but only if the mouse arrow is within the Simulation window Quadstone Paramics V4 2 11 Quadstone Paramics V4 2 Modeller User Guide 3 1 3 Reporter Window The Reporter window is docked just below the Simulation window and its size can be controlled using the adjustable pane control The window displays warning messages and it may be used to output information such as instantaneous data on selected vehicles If warning messages are displayed these should be read and assessed to see if the warning is critical Reporter Period 1 00 00 00 to 23 59 59 A standalone Status Report window can also be opened using Tools gt gt Reporter Crtl T and this window can be dragged to any position on the screen 3 1 4 Navigation There are several different methods of navigating within the Modeller Simulation window The recommended method is to use the mouse buttons on a three button mouse Alternatively use a mouse one two or three button together with the Navigator Control Panel or with keypad characters 3 1 4 1 Three Button Mouse Within the Simulation window move the mouse arr
152. x count 1 divisor 1 matrix 1 fron 1 0 10 10 10 10 10 from 2 from 3 from 4 10 10 10 O0 10 10 from 5 from 6 Remember to change the demand period for each file so that demands 1 has demand period set to 1 demands 2 has demand period set to 2 etc Select Edit Configuration Base Parameters and set the start time to 00 00 00 and the simulation time is 23 59 59 Start the simulation The simulation clock shows the following information 00 00 00 4 0 00 x RT Quadstone Paramics V4 2 97 Quadstone Paramics V4 2 Modeller User Guide The 4 indicates the time period number associated with the simulation time of 00 00 00 By selecting Editor Options gt gt Periodic from the Editor Toolbar window you see that the Demands toggle has switched to on At the start of the simulation only PT vehicles appear on the network according to their coded start times at minutes past the hour The period can be advanced or regressed with the simulation clock by using the period advance regress icons located to the right of the simulation clock Set a time just before period 1 i e before 8 15 and restart the simulation more PT vehicles appear on the network almost immediately This happens because Paramics recognises that the simulation has switched to another hour and is several minutes beyond the start so calculates that a number of PT vehicles should have been released by this time All those PT vehicles are immedi
153. y wish to archive material after a specific part of work has been completed To do this select File gt gt Archive gt gt Backup and include comments in the box provide e g Changed signal plan at High St Church St junction Modeller will archive the data after the user has selected the Backup function To restore archived data use File gt gt Archive gt gt Restore Note Restore will overwrite the network data that exists currently so be careful when restoring from archives that work that has been done is not overwritten It may be that the user would prefer to use File gt gt Save As in the Editor Toolbar to save different stages of the network development in separate directories Alternatively use the File gt gt Save As PRM option in the Editor Toolbar window This option saves the current network as a file with prm filename extension so that all the network description files are contained in one PRM file as opposed to a directory To load this information the user selects the option File gt gt Open types the PRM filename in the selection box and selects OK See Appendix A of the Modeller Reference Manual Paramics File System Note The backup function on the PC will require the Windows operating system to show file extensions for known file types To change this use the Windows Explorer program or open the My Computer folder Select the View gt gt Options from the dropdown menu and select the View

Modeller - Institute of Transportation Studies

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